Avantree HT4186 User manual

Model No.: BTHT-4186-BLK
Avantree HT4186
USER MANUAL

HT4186
User Manual
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EN User Manual
DE
FR Manuel de L’Utilisateur
ES Manual de Usuario
IT ManualeUtente
Benutzerhandbuch
JP 92
取扱説明書

Video Guide
Book an Appointment
Prefer to watch a video tutorial? Scan the QR code below or visit
avantree.com/4186/video for a step-by-step guide.
You can also book a 1-on-1 setup appointment with
one of our support agents at avantree.com/book-a-call
HT4186
User Manual
EN

HT4186
User Manual
Table of Contents
Box Contents
Product Introduction (Earbuds)
Product Overview
Button Functions
LED Indicators
Product Introduction (Transmitter)
Product Overview
Button Functions
LED Indicators
Setting Up
Connecting to Your TV
Option 1 - Optical port (recommended)
Option 2 - AUX 3.5mm port
Option 3 - RCA port
Connecting the Earbuds to the Transmitter
Setting Up Your TV (FOR OPTICAL CONNECTIONS ONLY)
Advanced Features
Using the Earbuds with a Phone
Adding a Second Pair of Headphones
Specications
FAQ
Contact us
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CBA
Box Contents
FE
D
IH
G
NB16TEarbuds Audikast Plus Transmitter
AUXvxxcOPT
LL
FS APTX
SBC
USB
MicroUSB Power Cable
Micro USB
Charging Cable
Optical Audio Cable 3.5mm AU Cable
3.5mm AUX to
RCA Adapter Adhesive PadSpare Earbud Tips & Fins

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1
2
Note:Press & hold for 3 seconds to power on / o
No. Button Functions
From o, press & hold for 5 seconds to enter pairing mode
Tap once to increase / decrease volume
Press & hold for 1 second to skip / replay track
Press & hold both for 7 seconds to clear the pairing history
Tap both once simultaneously to activate voice assistance
(only works with phones)
Product Introduction (Earbuds)
Product Overview
Button Functions
1
2
3
Multifunctional
button (MFB)
Volume adjustment
AStatus indicator
Charging port
2.5H
Low Full

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A
No.
Solid blue for 1 second
Indicators & Voice Prompt Function
Power on
Power o
Pairing
Connected
Disconnected
Pairing history
cleared
Low battery
Fully charged
Charging
Solid red for 2 seconds then o
Alternate red & blue ashes, "PAIRING" voice indicator
Solid blue, "CONNECTED" voice indicator
Blue ashes every 5 seconds
Solid pink for 5 seconds then solid red for 2 seconds
Redashesevery 5 seconds, "LOW BATTERY" voice
indicator
Solid red
LED o
LED Indicators

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Product Introduction (Transmitter)
Product Overview
AA
BC
1
4
2
3
Switch to "ON / OFF" position to turn the transmitter on / o
No. Button
Power port
Functions
Press & hold for 5 seconds to enter paring mode ( for
NB16T earbuds, for additional headphones)
Once connected, press & hold for 10 seconds to lock the
headphones to the transmitter
Tap once to increase / decrease volume
Press & hold both for 7 seconds simultaneously to clear the
pairing history
Button Functions
3
4
2
ON/OFFAUX
1
ON/OFF
OPTICAL
DC IN
Audio codec indicators
Volume control buttons
Pairing button for
NB16T earbuds
Audio input indicators
AUX OPT
LL
FS APT X
SBC
USB
Device connection
indicators
Device connection
indicators
Pairing button for 2
headphones
nd

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A
B
C
No.
Left indicate status, right indicate status.
Indicators Status
Reconnecting
Pairing
Connected
Connectedwith SBCcodec
ConnectedwithFastStream
codec
Connect with aptX codec
Valid audio signal
Invalid audio signal
Connect with aptX-LL codec
Blue ashes every second
Solid blue
Alternate red & blue ashes
“SBC”solidwhite
“FS”solidwhite
"ATPX" Solid white
"LL" Solid white
Solid white
Red ashes every second
LED Indicators

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Setting Up
Connecting to Your TV
NOTE: MostTVs support audio output through only one digital output port at a
time, so if your TV’s HDMI ARC port is in use, the optical port may be disabled. You
can either unplug the HDMI ARC, or try connecting the transmitter via RCA / AUX.
The transmitter must be connected to a power source via the provided
power cable in order to function. For wall-mounted TVs, you can use the
adhesive pad to attach the transmitter to the wall beside your TV.
You can plug the transmitter into either:
1. A TV’s USB power port, OR
2. A nearby wall outlet - 5V/500mA-2A power source
Once the transmitter is connected to its power source. You can then
connect it to your TV's audio ports. You can choose one of 3 dierent ways
to do this:
OPTION 1 Optical port (recommended)
Plug the provided optical audio cable into the TV’s optical OUT or “OPT
OUT” port, then plug the other end into the transmitter’s optical port.
RGBIN
COMPONENTIN
AUDIO
(RGB/DVI)
RGB(PC)
ANTENNA/
CABLEIN
1
2
RS-232CI
(CONT
ROL&SE
VIDEO
AUDIO
VIDEO
OPTICA
LCOAXIAL
S-VIDEO
DIGI
TALAUDIOOUT
HDMI/DVIIN
3
2
1
REMOTE
CONTROLIN
L/MONO
R
AUDIO
USBIN
HDMIIN 4
EOPT OUT
ON/OFF
DC IN
AUX
OPTICAL

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OPTION 3 RCA port
Connect the provided RCA adapter to the AUX 3.5mm audio cable. Plug
the red & white RCA connectors into the TV’s “AUDIO OUT” ports, then
plug the other end into the transmitter’s AUX 3.5mm port.
OPTION 2 AUX 3.5mm port
Plug the provided AUX 3.5mm audio cable into the TV’s AUX 3.5mm
output port, then plug the other end into the transmitter’s AUX 3.5mm
port.
RGBIN
COMPONENTIN
AUDIO
(RGB/DVI)
RGB(PC)
ANTENNA/
CABLEIN
1
2
RS-232CI
(CONT
ROL&SE
VIDEO
AUDIO
VIDEO
OPTICA
LCOAXIAL
S-VIDEO
DIGI
TALAUDIOOUT
HDMI/DVIIN
3
2
1
REMOTE
CONTROLIN
L/MONO
R
AUDIO
USBIN
HDMIIN 4
F
DC IN
ON/OFFAUX
AUX IN
RGBIN
COMPONENTIN
AUDIO
(RGB/DVI)
RGB(PC)
ANTENNA/
CABLEIN
1
2
RS-232CI
(CONT
ROL&SE
VIDEO
AUDIO
VIDEO
OPTICA
LCOAXIAL
S-VIDEO
DIGI
TALAUDIOOUT
REMOTE
CONTROLIN
L/MONO
R
AUDIO
USBIN
HDMIIN 4
DC IN
ON/OFFAUX
AUX IN F
HDMI/DVIIN
3
2
1
G

Wait for a few seconds. The NB16T earbuds will connect to the
transmitter automatically. Once connected, both the LED indicators
on the earbuds and the left on the transmitter will turn solid blue.
The “FS” indicator on the transmitter will turn solid white.
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Connecting the Earbuds to the Transmitter
Now that the transmitter is all set up, you can connect the NB16T earbuds
to the transmitter.
STEP 1
Power on the transmitter by sliding the switch to the “ON” position.
STEP 2
Press & hold the earbuds’ button to power on.
STEP 3
AUX OPT
LL
FS APTX
SBC
USB

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NOTE: When Samsung / LG Smart TVs detect your Avantree device, a popup will
appear on the screen asking you to “Allow / Deny the device to connect to the TV”.
You MUST DENY the device from connecting, otherwise it will not be able to connect
with the other device in its set.
Close
Close
Avantree HT4186
Your permission is required
to connect your device to TV.
Allow
Deny
Close
For subsequent use
If the NB16T earbuds fail to reconnect to the transmitter, you can manually
initiate reconnection by tapping on the transmitter once and waiting for
a few seconds.

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If you connected to your TV via the optical OUT or “OPT OUT” port, you’ll need
to congure your TV settings before you’ll receive audio.
Using your TV’s remote control, press the SETTINGS button and navigate
to the AUDIO tab within the settings menu. (Please note that there may be
dierences in the setting names depending on your brand of TV).
STEP 1
Proceed to AUDIO OUTPUT and select “OPTICAL OUT / DIGITAL OUT”.
Many TVs will do this automatically; skip this step as needed.
STEP 2
Set the AUDIO OUTPUT format to “PCM / STEREO”ON or “ DOLBY ” OFF.
STEP 3
Sound
Audio Out Optical Out
Digital
Audio
Format
or
PCM/Stereo
Dolby - OFF
Setting Up Your TV (FOR OPTICAL CONNECTIONS ONLY)

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NOTE 1: Smart TVs automatically reset their settings after system updates. Make
sure your audio output / input format is set to “PCM” and NOT “AUTO” or “Dolby.”
NOTE 2: When using Netix or Amazon Prime, you may need to start the movie /
show before changing the audio settings to “PCM.”
If you’re having trouble nding these settings, you can scan the QR code
correlating to your TV’s brand OR visit
avantree.com/4186/tv-audio-settings for a more detailed guide.
LG SONY SAMSUNGNetix/Amazon prime

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The NB16T earbuds canbeusedindependentlyasregularBluetoothheadphones.
Visit avantree.com/4186/video if you’d prefer to watch a video guide on this process.
Power o the transmitter by sliding the switch to the OFF position.
STEP 1
EntertheNB16Tearbudsintopairing mode by pressing and holding the
power button for 5 seconds.
STEP 2
TurnonBluetoothonyourmobiledevice.Select“Avantree NB16T” from your
phone’s Bluetooth menu.
IFor subsequentuse,youcanmanuallyinitiatereconnectionby tapping the
earbuds’  buttononceorselecting“AvantreeNB16T”inyourdevice’s
Bluetooth menu. Make sure thetransmitteristurnedobeforedoingso.
STEP 3
Advanced Features
Using the Earbuds with a Phone

Connect the NB16T earbuds to the transmitter by following the steps in the
“Connecting the Earbuds to the Transmitter” section (Page 11).
STEP 1
Once the NB16T earbuds are successfully connected, put your transmitter into
pairing mode by pressing & holding the button until the LED ashes red
& blue alternately.
STEP 2
Put your 2nd pair of Bluetooth headphones into pairing mode. Please refer to
your headphones’ user manual for more details if necessary.
STEP 3
Keep the transmitter & your 2nd pair of headphones close together and wait
for 5-10 seconds until they connect. Once connected, the LED will turn a
solid blue.
STEP 4
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Adding a Second Pair of Headphones
You can connect and simultaneously listen through two pairs of
headphones if desired. Please refer to
avantree.com/4186/2nd-headphone-connection for more details.
NOTE: To easily reconnect the 2nd pair of headphones to the transmitter, you can
lock them to the transmitter by pressing & holding the transmitter’s button for 10
seconds or until you see the right LED turn solid PINK for 5 seconds.
For subsequent use, make sure your 2nd pair of headphones are not connected to
another device, then turn the headphones on and click the transmitter’s button
once to automatically reconnect the two devices.

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Specications
Transmitter
Bluetooth version v5.0
Supported audio codecs aptX-LL, aptX, FastStream, SBC
Supported proles A2DP
Operating range Up to 100ft / 30m
Supported audio format in
optical mode PCM / LPCM（96KHZ/16bit）
Power port
Ratedinput
Weight
Micro USB
DC5V/500mA~2.0A
32g
Earbuds
Bluetooth version v5.0
Supported audio codecs FastStream, SBC
Supported proles HSP V1.2，HFP v1.6，
AVRCP V1.4，A2DPV1.2
Operating range Up to 30ft / 10m
Playtime Up to 20hrs
Charging time
Frequency response
~2.5hrs
20Hz - 20KHz
Power port
Ratedinput
Weight
Micro USB
DC5V/500mA~2.0A
32g

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FAQ
Below are some of the most common questions people have during setup.
Can I have audio through my TV's speakers and wireless headphones at the
same time?
This completely depends on whether or not your TV supports the ability to output
audio to 2 sources simultaneously. You can try a few dierent methods to test if
your TV is capable of this or not - please refer to avantree.com/4186/sound for
more details.
What’s the best way to take care of & maintain upkeep for my earbuds?
Regularly cleaning your earbuds before and after use not only protects them from
potential damage, but also helps eliminate sound muing issues. You can use dry
cotton swabs or similar to gently wipe dust, earwax, and oil from the earbud tips
on a regular basis in order to maintain upkeep.
Howdo I connectmyAvantreeTVheadphones/transmitters withmy
Samsung smart TV?
Whyaren'tIgettingsoundfrommyheadphones?
Why aren’t I getting sound when watching Netix / Amazon Prime?
……
For answers to questions like these and for a full FAQ list, you can visit
avantree.com/support/4186, or you can contact us directly for additional
assistance.

HT4186
User Manual
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Contact Us
Support Tickets avantree.com/submit-a-ticket
Support Email [email protected]
FAQ avantree.com/support/4186
USA / CA [phone] (9am-6pm PST, Mon-Fri )
UK [phone] (9am-6pm, GMT, Mon-Sat)
DE [phone] (11am-9pm, CET, Mon-Sat )
FR + 33 176340312 (11am-9pm, CET, Mon-Sat )
IT [phone] (9am-6pm, CET, Mon-Sat )
ES + 34 931786261 (9am-6pm, CET, Mon-Sat )
AU [phone] (11am-7pm, AEST, Mon-Fri)
Video Guide avantree.com/4186/video
Product Registration avantree.com/product-registration