SIMOLIO SM-8245 User manual

1
R
2
Digital 2.4GHz Wireless TV HeadphonesDual
User Manual
SM-8245
Sales & Support Email: [e-mail] (for )
[e-mail] (for )
NA/AU
UK
Sales & Support Email: [e-mail] (for )
[e-mail] (for )
NA/AU
UK

SM-8245
01
IMPORTANT SAFETY INSTRUCTIONS
1. Please read this instruction manual carefully and completely before using the
products. Keep this manual easily accessible at all times.
2. Always keep the product dry, and do not expose them to extreme temperatures.
3. The receiver must keep the minimum volume before switching the unit on.
High volume may cause hearing damage to persons with normal hearing,
especially to children.
4. Keep devices away from liquid. Before cleaning the product and its accessories,
disconnect the transmitter from the power adapter, and use only a slightly damp
cloth to clean the devices.
5. Use only the supplied power adapter.
6. Use the products with care and set them up on a stable surface of a clean,
dust-free environment.
7. The unit may get hot during use. Ensure the unit has adequate ventilation.
8. Please put the product far away from microwave oven, mobile phones, WiFi
router etc. to avoid unnecessary electronic wave interference.
9. Please switch off the transmitter and receiver after use, and pull out the power
adapter from the wall socket when not using for a long time.
10. Only qualified person can provide services! Do not attempt to open the unit!
Pacemaker Safety:
CAUTION!
Before using this product with a pacemaker or other medical device, consult
your physician or the manufacturer of your pacemaker or other medical device.
SM-8245
Thank you for choosing the SIMOLIO SM-8245 dual 2.4G digital Wireless TV
headphones. Please read this guide carefully and keep it in a safe place for future
reference. If you need any further assistance, please contact our customer support
team at:
[e-mail] ( )
[e-mail] ( )
Response Time: 2-24h, excl. Holidays
NA/AU
UK
Welcome to subscribe to our YouTube channel - “Simolio Direct” for more
product information.
Table of Contents
Important Safety Instructions .................................................. 01
Overview ................................................................................. 02
Features ................................................................................... 02
Product Diagram ...................................................................... 04
Package Contents ..................................................................... 05
LED Indication ........................................................................ 05
How to Use ................................................................................ 06
1. Check Your TV/Audio Source Output Options before the Set up ... 06
2. Turn on the Transmitter and Headphones ................................... 07
2.1 Power the Transmitter ........................................................ 07
2.2 Turn on the Transmitter ...................................................... 07
2.3 Turn on the Headphones .................................................... 08
3. Connect the Transmitter to Your TV/Audio Source ..................... 08
3.1 Digital Optical Connection ................................................. 08
3.2 RCA Analog Connection ..................................................... 10
3.3 3.5mm/AUX Analog Connection ......................................... 12
3.4 Other Connections in Special Cases ..................................... 13
4. Use Two Sets of SIMOLIO 2.4GHz Wireless TV Headphones
Simultaneously in the Same House ........................................... 16
5. Charge the Headphones .......................................................... 16
6. Customizing your SM-8245 ................................................... 18
Troubleshooting ....................................................................... 21
..................................................................... 23
Technical Specifications ........................................................... 24
............
Limited warranty

02 03
SM-8245 SM-8245
OVERVIEW
FEATURES
(1) Dual 2.4G Digital Wireless TV Hearing Assistance and Hearing
Protecting Headphones
Two styles of headphones one is an over-ear style and the other is an under- chin
style. You can use the two headphones alternately as needed, or two people use
them to watch TV together.
(3) Long Distance Transmission
Supported with the latest technology, you can have wireless freedom and crystal
clear voice within a range of up to 100 feet.
(4) Voice Highlighting Tech
Reduce background voice in TV to highlight the dialogues, so that words hard to
hear can easily stand out, making television dialogues to be understood easily.
(5) Noise Cancelling Tech (NCT)
Reduce the ambient noise to help the users to focus on listening to the dialogues
in TV.
(6) Automatic Signal Control (ASC)
Our special circuit design can adjust the sudden volume change and make the
output volume stable. It will avoid strong signal hurting the users' hearing.
(7) BALANCE Control
The balance control allows for right/left volume adjustment. Adjust the balance
so that you hear equally well with both ears.
(8) TONE Control
It is specially designed for people who have different sound frequency
sensitiveness. They can select TONE (Treble/Normal/Bass) to find the optimum
parameters, and hear the target audio source clearly.
(9) MONO/STEREO Optional
You can switch to STEREO for enjoying Hi-Fi sound quality music or select
MONO for enjoying more clear TV dialogues.
(10) Headphone Designed with Auto Power Off Function for Power
Saving
When no signal is received for 10 minutes, the headphone will be powered off
automatically.
(11) One Transmitter Can Support Multiple Headphones
Additional SIMOLIO 2.4GHz wireless headphone receivers can be added to the
SM-8245 system, allowing multiple listeners to enjoy the same audio source.
(12) Good Compatibility
Compatible with any brand of TV/Smart TV box/ Cable TV box/Set-top box/DVD/
other audio device that has a Digital Optical, RCA or 3.5mm AUDIO OUT port(s).
(13) Max Comfort
The headphone ① comes with super-soft memory foam ear tips which can reduce
earphone irritation and fatigue, but we strongly suggest that you change your ear
The unique “one-button push” sound amplifier function allows you to hear clearly
what people are talking nearby without taking off the headphones.
Would you like to watch television with crystal-clear sound that won’t disturb
others in your family? Do you want to avoid hearing damage that could be caused
by wearing normal wireless headphones for a long time? SIMOLIO SM-8245
wireless TV hearing assistance and protecting headphone are just made for you.
Apply with the latest 2.4GHz Digital Automatic Frequency-Hopping Spread
Spectrum (FHSS) technology, it gives you crystal-clear sound with the freedom
of a wireless connection - up to 100 feet without obstacles. You can customize
your listening at a most comfortable volume level, via balance and tone controls.
Our voice highlighting and noise cancelling technology dynamically reduce TV
background sounds and make TV dialogues stand out. At last you can easily
understand the TV dialogues at a healthy volume without worrying about your
hearing being damaged.
The SIMOLIO SM-8245 is especially helpful for hearing-impaired people. It
overcomes the weakness of regular hearing aids, which amplify both speech and
environmental background at the same time. Normal wireless headphones for TV
watching don’t help either, they also amplify everything together. Also, over
time you’ll keep turning the volume up and up, and that can make your hearing
worse and worse. Our hearing protecting headphone solves these problems.
It’s compatible with both digital and analog audio output ports and suitable for
almost all TVs and the set-top boxes on the market.
(2) Personal Sound Amplifier
A MIC button is designed as an additional & unique feature to help you to
temporarily hear what people are talking to you when watching TV without
taking off the headphone.

SM-8245 SM-8245
04 05
BALANCE
(Left / Right)
VOLUME
Power ON/OFF
Personal Sound
Amplifier Button
Wireless Receiving Indicator ( LED 1) /
Audio In
LR
R
Built-in Mic
R
PRODUCT DIAGRAM
Transmitter
Battery
Compartment
Volume
Control
Balance
Control
Power
ON/OFF
Charging
Socket
Battery
Cover
ON
VOL
BAL
OFF
L
R
L
H
AUDIO IN
OFF/ON
(OFF/MONO/STEREO)
POWER IN
OPTICAL IN
TONE
(TREBLE/
NORMAL/
BASS)
Battery
Charging
Compartment 3
Charging
Indicator 3 2 1 (Red)
Power & Working
Indicator (Green)
Main Charging Slot
2
Main Charging Slot 1
BASS
TREB LENORMAL
STER EO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/ONPO WER IN
OPTICAL I N
(14) Multiple Charging Methods
tips every 30 to 60 days, this will ensure comfort and cleanliness.
Headphone 1
Headphone
2
built-in
Li -ion
battery
spare
Li -ion
battery
The headphone ② is recharged by the supplied USB Type-C cable into a compatible
USB charger (PC or TV USB port). It is ok to use most mobile phone chargers on
market.
PACKAGE CONTENTS
8. User Manual 9. Quick Guide
US UK
7. Power Adapter
5. If no Optical Audio Out port available, we suggest to connect the transmitter base to the red and white
RCA ports which labeled as AUDIO OUT of your TV. If the RCA AUDIO OUT port of your TV is unavailable,
you can connect the transmitter base to your
which is hooked up with your TV.
Smart TV box/Cable TV box/Set-top box/DVD/other audio
device
TV Rear
Transmitter 3.5mm
Audio In
Audio Out
TV or Cable Box
QUICK G UIDE for SM-823D, SM-824D & SM-825D
IMPORTANT:
When use it as a wireless TV headset, the working
indicator is on. As a personal sound amplifier, the MIC indicator is on.
TV/Smart TV box/
Cable TV box/Set-top box/DVD/other audio device
1. The unit will not work with the optical audio if the optical cable is carrying a Dolby Digital or DTS signal.
In this case, set the Audio Out Format of your TV and TV related AV devices (e.g., cable box/DVD etc) to
PCM to get the unit to work.
2. Three different audio cords: digital optical cord, RCA cord and 3.5mm cord. In the end, only one of these
cords is needed to complete the installation.
3. This device is a wireless TV headset as well as a personal sound amplifier. You can find a MIC ON/OFF
button at the rear of headset. It is designed for hearing impaired people to clearly hear what people’s
talking to him/her nearby when watching TV. Just press MIC ON/OFF button , you can turn this headset to
a personal sound amplifier which could amplify the people's voice around. When you want to back to
watching TV, just press the MIC button again.
4.We suggest to hook up the transmitter base to the Optical Audio Out port of your
in priority, for enjoying the super sound quality.
For streaming media watching (Netflix, Amazon Prime Video, etc.), place the transmitter base at least 4
feet away from your smart WiFi TV/WiFi TV box/TV sticks to avoid interference.
green
red
Page 1
TONE
TREBLE
NORMALBASS AUDIO IN
STEREO
MONO
OFF
DC 5V
OPTICAL
TONE
TREBLE
NORMALBASS AUDIO IN
STEREO
MONO
OFF
DC 5V
OPTICAL
Optical
Audio Out
TV Rear Optical Splitter
Optical In
Optical Out
Sound Bar Transmitter Audio In
Optical
Optical
Audio Out
TONE
TREBLE
NORMALBASS AUDIO IN
STEREO
MONO
OFF
DC 5V
OPTICAL
Audio In
Optical
TV Rear
Transmitter
If you has a sound bar/HiFi need to be connected
with, we suggest to buy an optical splitter, so you
can connect your sound bar/HiFi and the transmitter
to your TV at the same time, shown as figure 2.
TV or Cable Box TV or Cable Box
R
L
Figure 2
Figure 1
Figure 3 Figure 4
SEVEN FREQUENCY ASKED QUESTIONS (FAQ) from marketing statistical analysis:
1.Outside noise overpowers the TV voice.
It is possible that the MIC ON/OFF button at the rear of headset is pressed on inadvertently, in this case the MIC
indicator is solid red . To back to watching TV, just press the MIC ON/OFF button again or switch off the headset
and then restart with the red MIC indicator off and the green TV receiving indicator on.
2.The connections are correct and in place, but no TV sound is heard or sound cuts in and out.
1) It is possible that the volume of the audio source is set too low. If you connect STB/Cable box/DVD etc to the
TV to watch programs, then the audio source is the STB/Cable box/DVD etc. Please use the audio source's
remote control to set its volume to a sufficient level to ensure a steady sound signal. If you want to mute the TV
sound and only hear from this headset, please use your TV remote control to click MUTE menu. (For most TVs,
the TV's speakers are separately controlled from the TV's audio out).
2) When do connection with the optical cable, set the Audio Out Format of your TV and TV related AV devices
(e.g., cable box/DVD etc ) to PCM to get the unit to work. ( Settings > Sound > Digital Audio Out Format >
VIDEO IN
COMPONENT
IN
AUDIO IN
RCA
AUDIO OUT
RCA
BASS
TREBLENORMAL
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/ON POWER IN
POWER OUT
DC 5V/500mA
OPTICAL IN
BASS
TREBLENORMAL
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/ON POWER IN
OPTICAL IN
SM-823D
SM-824D
SM-825D
or
3. Optical Fiber
Cable
2. Transmitter
1. Headphones
A Spare Li-ion battery included
(for headphone ①)
4. -
Audio Cable
Ø3.5mm RCA 5. 3.5mm
Audio Cable
Ø6. USB
Charging Cable
Type-C
(for headphone )
2
1
R
2 2
Digi tal 2.4 GHz Wire less TV He adpho nesDual
Use r Manua l
SM- 82 45
Sales & S uppor t Email : suppo rt@si molio .com (f or USA)
suppo rt_uk @simo lio.c om (for E urope )
LED INDICATION
LED Status Transmitter Status
Green LED flashes slowly No audio signal in within 5 minutes
Bright green LED lighting steadily
Red LED ③lighting steadily
Red LED off
Dark green LED lighting steadily In standby mode (no audio signal in
for more than 5 minutes)
Wireless working mode
Spare battery charging
Battery charging completed/no charging
LED Indicators of the Transmitter
Red LED ①/② lighting steadily Headphone ① charging
①/②/③
Headphone②Headphone①
Personal Sound Amplifier Indicator (LED 1)
You can plug the headphone ① into either of the main charging slots on the base
for recharging. There is a spare battery always ready in the battery charging
compartment on the transmitter for sustained enjoyment.
The headphone ② comes with ergonomic designed protein earmuffs and
retractable soft-padded headband providing lasting comfort. Full-sealed ear pads
effectively reduce the outside noise and let you understand your TV dialogues
with lower volume.
Personal Sound
Amplifier Button
Charging
Indicator
( LED 2)
Li-battery
Battery
Compartment
USB Type-C
Charging Socket
L

06 07
SM-8245 SM-8245
LED Indicators of the Headphone ②
Headphone charging
LED Status Headphone ② Status
Green flashes slowly ( LED LED 1) No signal received
Green LED quickly and
headphone beeps every minute LED 1)
flashes
(
Green LED lighting steadily (LED 1) Wireless working mode
Low power indication
Built-in MIC working mode
Red LED on (LED 2)
LED flashing red and green alternately LED 1) (
Headphone charging completed
Red LED off (LED 2)
LED Indicators of the Headphone ①
LED Status Headphone ① Status
No signal received
Wireless working mode
Low power indication
Built-in MIC working mode
Green LED flashes slowly
Green LED flashes quickly and
headphone beeps every minute
Green LED lighting steadily
Red LED off Built-in MIC off
Red LED lighting steadily
Note:
• The transmitters will automatically enter standby mode within 5 minutes of no
signal input, and it will automatically restart when there is an audio signal input.
HOW TO USE
SM-8245 is compatible with OPTICAL output, AUX 3.5mm output, and RCA
(labeled “AUDIO OUT”)
1. Check Your TV/Audio Source Output Options before the Set up
• The headphones will power off automatically after 10 minutes of no audio signal
in. Using them again, you need to slide ON/OFF switch to “OFF” position, then
slide to “ON”. Be aware, the headphones will not automatically power off in the
personal sound amplifier mode unless the batteries are dead.
2.1 Power the Transmitter (Ref. Fig 2-1)
Plug the supplied AC adapter into a standard electrical outlet, plug the other end
of the AC adapter into the port labeled “DC 5V” on the back of the transmitter.
2. Turn on the Transmitter and Headphones
Note:
• Three different audio cables included: digital optical cable, RCA cable and
3.5mm cable. In the end, only one of these cables is needed to complete the
installation.
• If your audio source device has an optical audio out port, please connect
SIMOLIO to this port preferentially. If not, you can also connect SIMOLIO to the
RCA or AUX/3.5mm or other audio out port of the audio source device.
Power in
Power adapter
Transmitter
DC 5V
POWER I N
Fig 2-1
BASS
TREBLEN ORMAL
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/ONPOW ER IN
OPTIC AL IN
AUDIO IN
Digital Optical
AUDIO OUT
OPTICAL
AUDIO OUT
(need extra 6.35mm
to 3.5mm adapter,
purchase separately)
(need extra digital to
analog converter,
purchase separately)
Digital
AUDIO OUT
Coaxial
COAXIAL
Jack
Options
Natively
supported?
Please refer
to Point
6.35mm
Phone jack
PHONE
3.1
AUX/3.5mm
3.3
RCA jacks
labeled
AUDIO OUT
RL
AUDIO OUT
3.2 N/A 3.4 3.4
Fig 1-1
Other RCA
jacks(usually
audio in)
RL
STEREO
MONO
OFF
OFF/ON
Fig 2-2
2.2 Turn on the Transmitter (Ref. Fig 2-2)
Slide OFF/MONO/STEREO switch to “MONO” or “STEREO” position.

08 09
SM-8245 SM-8245
• Ensure your TV speaker is set to “External Speakers”.
(Ref. Fig 3-7)
Plug either end of the optical audio cable into the “Digital Audio Out (Optical)”
port on the back of the TV. Plug the other end of the optical digital audio cable
into the port on the back of the transmitter labeled “OPTICAL IN”. (Ref. Fig 3-5)
Step 2. TV Audio Format and Speaker Setting (use TV remote control)
If you can not hear sound from your headphones after connecting:
Optical Audio Cable
Digital Audio Out
(Optical)
Fig 3-5
• Ensure TV Audio Format is set to “PCM” or “Dolby/DTS” is OFF (This is
IMPORTANT, Ref. Fig 3-6)
PS: for certain smart Samsung models, the TV is
retaining separate settings for regular TV and
internet TV setup. When you turn to the Smart
Hub for Internet source, please use the TV remote
to go to Settings > Sound > Expert Settings >
Audio Format or Digital Output Audio Format,
then select PCM.
CAP Remove the protective plastic caps
from both ends of the optical digital
audio cable.
Fig 3-4
Step 1. Hook up SIMOLIO to the Optical Audio Out Port of the TV/other
Audio Device
Fig 3-6
Settings
Audio Format
Dolby Digital
DTS
DTS Neo 2:5
PCM
Fig 3-7
Speakers
Internal speakers
External speakers
Headset
OPTICAL IN
BASS
TREBLE NORMAL
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/ON POWER IN
OPTICAL IN
Notes: If your TV only supports single sound out, the TV’s speakers will be
either automatically muted when you plug something into an audio out port
(Optical/ AUX/RCA, etc.) or they become disabled once you choose "External
Speakers" as your TV's audio output. It depends on TV circuit design.
2.3 Turn on the Headphones
Slide ON/OFF switch to “ON” position.
R
Fig 2-3
ON
VOL
BAL
OFF
L
R
L
H
ON OFF
3.1 Digital Optical Connection
This part will instruct you on how to connect the SIMOLIO SM-8245 transmitter
to your television, satellite, or cable box using an optical digital audio cable.
• Be aware that the base should be placed at least 4 feet away from your Router/
smart WiFi TV/Roku/WiFi TV box to avoid interference.
• If you cannot get to the back of your TV and you only watch the programs
through a fixed TV box (cable/satellite box/DVD etc.), you can also use these
instructions to install the system to your TV box.
2
Headphone
1
Headphone
3.Connect the Transmitter to Your TV/Audio Source
Set the volume of the audio source to a level sufficient for people with normal
hearing to clearly listen to the TV to ensure stable audio output.
i.e. set the TV box VOL ≥ 30 % & TV VOL ≥ 40% (Ref. Fig 3-1) (Ref. Fig 3-2)
For watching TV quietly without disturbing others, the right way is: Mute your TV
by pressing the MUTE button on the remote control or choose any speaker option
other than TV Speaker in the TV Sound Output settings.(Ref. Fig 3-3)
• The above settings may differ from various TVs.
TV box VOL ≥ 30 %
Fig 3-1
Mute
Fig 3-3
TV VOL ≥40 %
Fig 3-2

AUDIO IN
BASS
TREBLE NORMAL
STERE O
TONE
AUDIO IN
MONO
OFFDC 5V
OFF/ONPOW ER IN
OPTICAL IN
10 11
SM-8245 SM-8245
For most TVs, the TV's internal speakers and an external audio device can work
simultaneously. Such as, for some newer LG TVs, when do optical audio
connection, you can set the “Sound Out” to “Internal TV Speaker + Audio Out
(optical)”. And for some newer Samsung TVs, you can enable this feature by
selecting “TV Speaker” from the TV Sound Output lists.
3.2 RCA Analog Connection
This Part is an alternative to 3.1 on page 8-9. This part will explain how to connect
the SIMOLIO SM-8245 transmitter to your television, satellite, or cable box using
an RCA analog audio cable.
Plug the red and white ends of the audio cable into the analog RCA Audio Out ports
(red and white ports labeled “AUDIO OUT”) on the back of the TV. Plug the single
end of the audio cable into the port labeled “AUDIO IN” on the back of the
transmitter.
* Setting menu may be different depending on different TV brands and models.
• Be aware that the base should be placed at least 4 feet away from your Router/
smart WiFi TV/Roku/WiFi TV box to avoid interference.
• If you cannot get to the back of your TV and you only watch the programs through
a fixed TV box (cable/satellite box/DVD etc.), you can also use these instructions
to install the system to your TV box.
Step 1. Hook up SIMOLIO to the RCA Audio Out Port of the TV/other Audio
Device
Fig 3-8
RCA Audio Cable
TV REAR
R AUDIO OUT L
Step 2. TV Audio Out Checking and TV Speaker Setting (use TV remote
control)
If you can not hear sound from your headphones after connecting:
* Your TV’s analog audio settings may be set to
“Variable” or “Fixed”. If you want to be able to
control your TV volume level separate from your
SIMOLIO SM-8245 volume level, you will need to
make sure your TV is set to “Fixed”. Contact your TV
manufacturer for assistance. (Ref. Fig 3-12)
*Setting menu may be different depending on different
TV brands and models.
Notes:
* If your TV only supports single sound out, the TV’s speakers will be either
automatically muted when you plug something into an audio out port (Optical/
AUX/RCA, etc.) or they become disabled once you choose "External Speakers"
as your TV's audio output. It depends on TV circuit design.
AUDIO OUT
R
L
COMPONENT IN
VIDEO IN
TV REAR
Fig 3-9
SETTINGS
ANALOG AUDIO OUT
VARIABLE
FIXED
SOUND / AUDIO
Fig 3-12
• Ensure use TV Red/White ports labeled
“AUDIO OUT” or “OUTPUT”, other Red/
White ports are incorrect. (Ref. Fig 3-9)
• Ensure your TV speaker is set to “External
Speakers”. (Ref. Fig 3-10
• Use the RCA cable to plug the headphone ②
into the RCA output of the TV to test if you
can hear the TV sound. (Ref. Fig 3-11)
For most TVs, the TV's internal speakers and an external audio device can work
simultaneously. Such as, for some newer LG TVs, when do analog RCA audio
connection, you can set the “Sound Out” to “Internal TV Speaker + Headphones”.
And for some newer Samsung TVs, you can enable this feature by selecting “TV
Speakers” from the TV Sound Output lists.
Fig 3-10
Speakers
Internal speakers
External speakers
Headset
RCA Audio Cable
Fig 3-11
R AUDIO OUT L
2
Headphone
R

12 13
SM-8245 SM-8245
wireless
transmitter
Coaxial
Digital Out
Digital to Analog Converter
RCA OUT
L
R
COAXIAL IN
Step 2. TV Audio Format and Speaker Setting
(use TV remote control)
If you can not hear sound from your headphones
after connecting:
Fig 3-17
Notes:
* Your TV’s audio settings may be set to
“Variable” or “Fixed”. We recommend that you
set your audio settings to “Fixed” for better audio
quality when using this installation option. If you
want to be able to control your TV volume level
separate from your SIMOLIO SM-8245 volume
level, you will need to make sure your TV is set to
“Fixed”. Contact your TV manufacturer for
assistance. (Ref. Fig 3-16)
1) TV/Audio Source only has Digital Coaxial Audio Out port
3.4 Other Connections in Special Cases
* Setting menu may be different depending on different TV brands and models.
Step 1. Purchase a Digital to Analog Converter and Set up as Shown in
Fig 3-17
If your TV/Audio Source only has a digital coaxial audio out port, you will need
a digital to analog converter (DAC) for installation.
Fig 3-16
SETTINGS
ANALOG AUDIO OUT
VARIABLE
FIXED
SOUND / AUDIO
•Use the AUX/3.5mm cable to plug the headphone ② into the headphone/3.5mm
audio output of the TV to test if you can hear the TV sound. (Ref. Fig 3-15)
• Ensure TV Audio Format is set to “PCM” or
“Dolby/DTS” is OFF (This is IMPORTANT,
Ref. Fig 3-18)
Fig 3-18
Settings
Audio Format
Dolby Digital
DTS
DTS Neo 2:5
PCM
AUDIO IN
BASS
TREBLE NO RMAL
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/ON POWER IN
OPTIC AL IN
Step 2. TV Audio Out / TV Speaker Setting (use TV remote control)
If you can not hear sound from your headphones after connecting:
• Ensure your TV speaker is set to “Headset”. (Ref. Fig 3-14)
Speakers
Internal speakers
External speakers
Headset
3.3 3.5mm/AUX Analog Connection
This part is an alternative to 3.1 and 3.2 on page 8-11. This part will explain how
to connect the SIMOLIO SM-8245 transmitter to your television, satellite, or
cable box using a 3.5mm/AUX analog audio cable.
AUX/3.5mm Audio Cable
H/P or Audio Out
Fig 3-13
Plug one end of the 3.5mm audio cable into the “Audio Out” port on the back of
the TV. Plug the other end of the audio cable into the port labeled “AUDIO IN” on
the back of the transmitter.
• If you cannot get to the back of your TV and you only watch the programs
through a fixed TV box (cable/satellite box/DVD etc.), you can also use these
instructions to install the system to your TV box.
• If you connect the 3.5mm audio cable to the 3.5mm Audio Out port which is
usually a Headphone port on your TV, your SIMOLIO SM-8245 will still function
properly, but the sound to your TV internal speakers will be muted. The port is
usually labeled with an headphone icon.
• Be aware that the base should be placed at least 4 feet away from your Router/
smart WiFi TV/TV sticks/WiFi TV box to avoid interference.
Step 1. Hook up SIMOLIO to the 3.5mm Audio Out Port of the TV/other
Audio Device
H/P or Audio Out
3.5mm Audio Cable
Fig 3-14 Fig 3-15
AUDIO IN
BASS
TREBLE NOR MAL
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/O N POWER IN
OPTIC AL IN
2
Headphone
R

14 15
SM-8245 SM-8245
• Use the AUX cable and 6.35 to 3.5mm converter to plug the headphone ② into
the port on AV receiver to check whether the sound is normal.
Fig 3-23
AV Receiver
6.35mm Audio adapter
(purchase separately)
3.5mm Audio Cable
6.35mm Phone jack
If you can not hear sound from your headphones after connecting:
Pho nes
Step 2. If you can not hear sound from your headphones after connecting,
follow the part of 3.1 on page 8-9 to check your settings.
Step 2. Check the Performance of the AV Receiver's Audio Output as Shown
in Fig 3-23
Pho nes
AV Receiver
6.35mm Audio adapter
(purchase separately)
3.5mm Audio Cable
6.35mm Phone jack
Fig 3-22
Step 1. Purchase a 6.35mm to 3.5mm Adapter and Set up as Shown
in Fig 3-22
3) Connect SIMOLIO SM-8245 to your AV Receiver with 6.35mm
PHONE jack
SM-8245 is not compatible with ANY RCA(L/R) ports on your AV Receiver,
ONLY use the BIG 6.35mm PHONE OUT on front side of your AV Receiver
with the 6.35mm to 3.5mm adapter (purchase separately).
AUDIO IN
BASS
TREBLE NORMAL
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/O N POWER IN
OPTICAL IN
2
Headphone
2) If your TV/Audio Source’s Digital Optical Audio Out port is occupied
by soundbar, you will need an optical splitter for installation.
Step 1. Purchase an Optical Splitter and Set up as Shown in Fig 3-21
Optical Splitter
Optical Fiber
Cable
Sound Bar
Optical Fiber
Cable
SM-8245
(Transmitter)
Fig 3-21
Note:
Setting menu may be different depending on different TV brands and models.
RCA
OUT
L
R
COAXIAL IN
Connect TV/
Cable box/
STB etc.
RCA Audio Cable
H/P
L
R
COAXIAL IN
3.5mm Audio Cable
Connect TV/
Cable box/
STB etc.
or
Fig 3-20
PS: for certain smart Samsung models, the TV is retaining separate settings for
regular TV and internet TV setup. When you turn to the Smart Hub for Internet
source, please use the TV remote to go to Settings > Sound > Expert Settings >
Audio Format or Digital Output Audio Format, then select PCM.
• Ensure your TV speaker is set to “External
Speakers”. (Ref. Fig 3-19)
• Take turns to test RCA connection and 3.5mm
headphone connection.
• Use the AUX/RCA cable to plug the headphone ②
into the H/P port or RCA output of the DAC to test if
you can hear the TV sound. (Ref. Fig 3-20) Fig 3-19
Speakers
Internal speakers
External speakers
Headset
2
Headphone 2 Headphone
2
Headphone
R
Digital Optical
Audio Out
R
R
R

SM-8245 SM-8245
16 17
•Take the headphones close to the transmitter, then turn on the transmitter and
headphones and make sure the green LED indicators are facing towards each
other for about 5 seconds.
Note: If two headphones are used on the same TV, only one transmitter needs to
be connected, because one transmitter supports multiple headphones to work
simultaneously.
• The two sets of SIMOLIO 2.4GHz units should be put at least 10 meters away
from each other when using them simultaneously.
4. Use Two Sets of SIMOLIO 2.4GHz Wireless TV Headphones
Simultaneously in the Same House
Fig 4-1
room 1 room 2
SM-8245
(Transmitter 2)
SM-8245
(Transmitter 1)
Distance >10M (at least)
R
MIC ON/OFF
Wireless Receiving
Indicator (Green)
(Transmitter)
Power &Working
Indicator (Green)
STEREO
MONO
OFF
OFF/ON
OFF/ON
DC 5V
POWER IN
POWER IN
OPTICAL IN AUDIO IN BASS
TREBLE NORMAL
TONE
TONE
Fig 4-2
•
into the charging slot of the transmitter vertically and carefully and be sure the
front of the headphone ① with the logo of “SIMOLIO” is facing towards the
Slide the ON/OFF switch of the headphone ① to “OFF”. Put the headphone ①
5. Charge the Headphones
(1)Headphone 1
A: Through the main charging slots on the base
• Connect the original power adapter with the transmitter and an electrical outlet,
slide the OFF/MONO/STEREO switch to MONO or STEREO to power on the
transmitter.
2
Headphone
A spare battery in the battery charging compartment at the side of the transmitter
is always ready. When the headphone ① battery is low power, pull the spare
battery out of the battery charging compartment for replacement, and the
discharged battery can be put into the compartment for recharging.
B: Through the battery charging compartment in the base
Through the universal USB charger/outlet
You can charge your headphone ② conveniently by plugging the USB
power cable into a phone charger (5V/500mA-2A output), PC USB port, TV USB
port or any other USB outlet.
Type-C
2
(2) Headphone
Fig 5-1
Rechargeable &
Replaceable Battery
(included)
ON
VOL
BAL
OFF
L
R
L
H
battery
PUSH
Two Main
Charging Slots
Spare Battery
( )included
Bat tery
Extra Battery
Charging Slot
front of the transmitter with the logo of “SIMOLIO”. The red charging indicator
on the transmitter lights up and the headphone ① starts charging. If not, please
check and make sure the charging pins are fully inserted.
USB Type-C charging cable
Fig 5-2
(phone charger / PC USB port/
TV USB port or any other USB outlet) 2
Headphone
Notes: The charging time is approx. 3 hours.
charging and turn off once charging is completed. The headphone ① will last
approx 5~7 hours on a full charge and the headphone ② will last approx 10 hours,
but they will last a lesser or greater amount of time depending on the average
volume level of the headphones. Before using the spare battery for the first time,
charge it for at least 3 hours.
The LED will turn RED during

18 19
SM-8245 SM-8245
4) Tone Control
Select the TONE (TREBLE/NORMAL/BASS) at the rear of transmitter to find the
best feature, make sure you can hear the TV voice clearly.
(Ref. Fig 6-4)
5) Mono/Stereo option
You can switch to STEREO for enjoying Hi-Fi sound quality music or select
MONO for enjoying more clear TV dialogues. If, despite a correct balance
adjustment, you can hear the sound only with one ear: Set the STEREO/MONO
switch on the transmitter to MONO.(Ref. Fig 6-5)
3) Balance Control
If the hearing abilities of two ears are not the same, you can rotate the BAL dial
on the headphones for right/left volume adjustment so that you hear equally well
with both ears.
Note: for headphone ②, open the decorative cover on the right side of the
headphone to adjust the BAL.(Ref. Fig 6-3)
Fig 6-2
Hanger loops
Fig 6-3
BALANCE
(Left / Right)
LR
R
LR
( )
ON
VOL
BAL
OFF
L
R
L
H
BAL
L
R
1
Headphone 2 Headphone
TONE
TREBLE/NORMAL/BASS
AUDIO INBASS
TREBLE
NORMAL
TONE
Fig 6-4
(Transmitter)
BASS
TREBLENORMA L
STEREO
TONE
AUDIO IN
MONO
OFF DC 5V
OFF/ONP OWER IN
OPTICAL IN
1) Please make sure the headphones are being worn properly
Each side of the headphones has a letter to guide the wearer: “L” for left and “R”
for right. The arms of headphone ① incorporate memory stainless steel strips
which can be adjusted to a more comfortable wearing shape.The retractable
headband of headphone ② can be adjusted to fit you better.
6. Customizing your SM-8245
Fig 6-1
2) Hanger Loops Installation
You can attach the hanger loops to the headphone ① to
help you better adapt to the weight of the under-chin headphone.
• Hook the decompression hanger loops on each side of the headphone ①.
• Put the hanger loops on the ears, rotate them to best fit yourself.
(if necessary)
(purchase separately)
1
Headphone 2 Headphone
12
11
10
9
R
12
11
10
9
12 level
adjustable
•Hold each side of the headphone arms
and evenly bend inwards to adjust the arms
into a more comfortable shape.
①
•Repeat this process as necessary.
6) Personal Sound Amplifier Function
Personal Sound Amplifier Function: while listening wirelessly, press the MIC
ON/OFF buttons once on the headphones, you can clearly hear what people are
talking to you nearby. Press the MIC buttons again or switch off the headphones
and then on, they will be back to wireless listening mode. But if you press the
MIC ON/OFF buttons by chance when listening wirelessly, the volume will be
low with the ambient noise will be occurred.
(Transmitter)
BASS
TREBL E NORMAL
STEREO
TONE
AUDIO IN
MONO
OFFDC 5V
OFF/ONPO WER IN
OPTIC AL IN
STEREO
MONO
OFF
OFF/ON
OFF/ON
OFF/MONO/STEREO
Fig 6-5

SM-8245 SM-8245
Fig 6-6
LR
R
Personal Sound
( MIC ON/OFF)
Amplifier Button
R
Personal Sound Amplifier
(LED flashing red and green alternately)
Indicator
R
( )
2
Headphone
7) Ear tips Replacement as shown in Fig 6-7.
Fig 6-7
The connection between the
transmitter and the audio source is
wrong.
The audio sources (TV and TV
related AV devices) are not turned
on or their volume are set too low.
Make sure the connection is correct and
in place between the transmitter and the
audio source.
Turn on the audio source, and adjust its
volume to a sufficient level.
20 21
Phenomena Causes Solutions
Headphones
don’t work,
or no voice
received
The battery isn’t inserted properly
into the battery chamber or the
battery is run out.
The headphones are out of the
transmitting range.
The headphones are powered off
automatically.
The audio out port of the connected
audio device is defective
(no sig al out ).n
The audio out format of TV and TV
related AV devices (e.g., Cable
box, STB, DirecTV, etc.) is not set
to PCM.
TV volume is turned down to
ZERO.
Insert the battery properly, or charge the
battery fully.
Move the headphones closer to the
transmitter.
Switch the headphones off, then on.
Connect to another audio out port .
Set it to PCM. For example: Settings >
Sound > Digital Audio Out Format>
Dolby/DTS/PCM, menu depends on TVs.
Adjust the TV volume to a sufficient level.
If you want to mute the TV, please click the
MUTE key on the TV remote control or go
to TV settings to OFF the Internal TV
speaker.
TV audio output is disabled or
not activated.
Follow the instructions in your TV user
manual to change the TV’s AUDIO OUT
setting to "External TV Speakers".
Part 1
ON
VOL
BAL
OFF
L
R
L
H
Personal Sound
(MIC ON/OFF)
Amplifier Button
Personal Sound Amplifier
( Red LED Lighting steadily)
Indicator
1
Headphone
TROUBLESHOOTING
The transmitter is not connected
well.
The transmitter is not powered on.
The analog audio cable is plugged
into the AUDIO IN jack of the
transmitter when connecting with
the optical cable.
Make sure the AC adapter and the audio
cable of the transmitter are plugged in
place.
Switch to MONO or STEREO to power
the transmitter on.
Unplug the analog audio cable from the
transmitter.

SM-8245 SM-8245
Adjust the balance control properly.
Switch the transmitter to MONO.
The balance is not adjusted
properly.
The audio out signal of audio
source is mono, but the transmitter
is switched to STEREO.
If you are using RCA connection,
the RCA audio cable connecting
the transmitter and your TV/audio
source is NOT FULLY plugged at
BOTH ends.
Try to wiggle the audio cable or unplug
and plug the audio cable from both the
ends on TV/audio source and the
transmitter .
Faulty cable/audio out port issue. Try another audio cable or another audio
device.
The transmitter is not switched on. Switch on the transmitter when charging .
Make sure the is put into the
charging slot correctly and firmly, the
front of the is facing towards
the front of the transmitter.
headphones
headphone
The is not put into the
charging slot properly or firmly.
headphone
Headphone
can not be
charged
successfully
①
The voice is
heard only
with one ear
Part 2
22 23
Phenomena Causes Solutions
The audio out function of the
connected audio device is
defective (poor signal out).
Connect to another audio out port .
Place the transmitter base at least 4 feet
away from smart WiFi TV/WiFi TV box/
TV sticks to avoid interference.
The headphones are used for
listening to streaming media
(Netflix, Amazon Prime Video etc).
Sound cuts
in and out
or
some noise
is occurred
This warranty is provided at the discretion of Simolio Ltd. And does not cover
appearance or damage due to acts of nature, accident, misuse, abuse, negligence,
commercial use, or modification of or to any part of the product. Accessories such
as audio cables, power adapter and perishable items such as ear tips and batteries
are not covered under this warranty.
Please contact: [e-mail] (for NA/AU) or [e-mail]
(for UK) and provide your Amazon order ID to register the warranty.
LIMITED WARRANTY
12 months limited warranty: The 12 months warranty will cover defects in
manufacturing and product failure for a period of 12 months from the original
date of purchase. The warranty period is not extended if we repair or replace a
warranted product.
The headphones are working on
“personal sound amplifier” mode.
The battery’s power is too low.
The transmitter is placed too close
to metalworks or other
electromagnetic wave objects.
The audio source’s volume is set
too low.
Press the MIC ON/OFF button on the
headphones again or switch off the
headphones then restart to return to the
wireless tv listening mode.
Charge the battery fully.
Put the transmitter far away from the
interference sources.
Adjust its volume properly.
The connection between the
transmitter and the audio source is
not in place.
Make sure the connection is firm between
the transmitter and the audio source.
Headphone
can not be
charged
successfully
②
Faulty USB Type-C
charging cable.
Please change another workable USB
Type-C charging cable to see if it works.
The battery is not inserted into
the battery compartment in the
correct way resulting in the
battery contacts distorted.
Replace with a new headset.(damage due
to misuse, not covered by warranty)
One of the charging slots is
defective.
Put the battery in the battery charging
compartment of the base or change
another charging slot for recharging.
Headphone
can not be
charged
successfully
①
Phenomena Causes Solutions
Faulty Power source.
Please change another power source like
PC USB port, socket, different USB
charger(5V/500mA-2A).
Part 3

SM-8245
24
TECHINICAL SPECIFICATIONS
Signal-to-noise ratio
Transmission mode Automatic Frequency-Hopping Spread Spectrum
Carrier frequency 2.4GHz ISM BAND
Power Supply
output: DC 5V, 1A input: 100~240V
built-in 500mAh Li-ion Battery
Transmitter
Headphone ①
Frequency response
Distortion ≤1%
20 Hz – 20 KHz
≥70dB
Range Up to 100 feet (without obstacles)
Working time approx 10 hours under wireless
hearing mode
Charging time 3 hours
plug of power cable: 4.0*1.7mm
USB Type-C charging cable
Headphone ②
built-in 350mAh Li-ion Battery
Headphone ①
Headphone ②
approx 5~7 hours under wireless
hearing mode