Teufel REAL BLUE IN Parts list manual

Teufel REAL BLUE IN
Bluetooth In-Ear Headphone
You can find an extensive user manual
online at
www.teufelaudio.com/real-blue-in
Technical Description And
User Manual

2• REAL BLUE IN
Table of contents
General Information ......................... 3
Notice ............................................ 3
Right of Return .............................. 3
Complaints .................................... 3
For Your Safety .................................. 4
Proper Use..................................... 4
Safety notes....................................... 5
Explanation of terms..................... 5
Disposal............................................. 7
Trademarks........................................ 8
1. Introduction................................... 9
2. What’s in the box......................... 10
3. Product overview.........................11
4. Getting started............................12
4.1 Switching On or Off...............12
4.2 Choosing the correct
eartips .........................................12
4.3 Connecting with the
headphone ..................................13
4.4 Teufel Headphones App ......14
5. Using the headphones................15
6. Charging ......................................16
6.1 Charging the headphones....16
6.1.1 Charging time ...............16
6.1.2 Check the headphone
battery level ............................16
7. Troubleshooting........................... 17
8. Technical Data.............................19
9. Declaration Of Conformity ..........20

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General Information
Notice
The information in this document is
subject to change without prior notice
and in no way constitutes any liability
on the part of Lautsprecher Teufel
GmbH.
No part of this user manual may
be reproduced in any form or be
broadcasted in any way electronically,
mechanically, by photocopying
or recording without the written
permission of Lautsprecher Teufel
GmbH.
© Lautsprecher Teufel GmbH
Version 1.0
February 2021
Right of Return
If you wish to exercise your 8 weeks
right of return, we ask that you make
sure that you hold onto the original
packaging. We can only accept the
return of headphones WITH THE
ORIGINAL PACKAGING. Headphones
returned without the original
packaging will not be accepted.
Complaints
In the event of a complaint, the
invoice number is required in order
for your complaint to be processed.
The invoice number can be found
on the sales slip (enclosed with the
product) or on the order confirmation
PDF document.
Thank you for your support!

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For Your Safety
Proper Use
The “Teufel REAL BLUE IN”
Headphone are designed for the
playback of audio signals that
can be wirelessly transmitted via
Bluetooth®from the external player.
The headphones are also suitable
as a headphone for connecting
to Bluetooth compatible (mobile)
phones. Only use the headphones
as described in this user manual.
Any other use will be deemed as not
in accordance with the instructions
and may lead to damage to property
or even persons. The manufacturer
accepts no liability for damage
caused by improper use. The
headphones are intended for private
use only.
Before operating the
headphones, please first
read the safety notes and
user manual carefully. This
is the only way to use all functions
safely and reliably. Store the user
manual in a safe place and also be
sure to pass it on to any subsequent
owner.

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Safety notes
This chapter contains general safety
notices. You should always observe
these notices to protect both yourself
and third parties. You should also
observe the warning notices in each
chapter of this user manual.
Explanation of terms
You can find the following signal
terms in this user manual:
WARNING
This signal term indicates a
moderate risk, which, if not
avoided, may result in death
or severe injury.
CAUTION
This signal term indicates a
low risk, which, if not avoided,
may result in minor or
moderate injury.
NOTICE
This signal term warns you of
potential damage.
This symbol advises of useful
additional information.
WARNING
Danger of suffocation! Children
can become trapped in the
packaging film when playing and
suffocate.
• Make sure that children do not play
with the packaging, and that they
do not pull off small parts of the
headphones and put them in their
mouth.
Risk in road traffic and at work!
Your headphones significantly
dampen external noise so that
you are not entirely aware of your
surroundings.
• Do not in any case wear your
headphones while performing
activities where you are required to
pay attention to your surroundings.
This particularly applies to when
you are operating machinery or
driving on the road. You should
also observe the legal guidelines
and provisions of the country
which you are in when using the
headphones.

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Attention! Risk of explosion/
fire! Lithium rechargeable
batteries can explode if handled
improperly.
• Do not heat or burn the
rechargeable battery. Only charge
the rechargeable battery at
ambient temperature of -10–45
°C. Do not use the headphones
in environments where there is a
risk of explosion. Do not expose
batteries and rechargeable
batteries to direct sunlight.
Interference caused by radio
waves! Radio waves could affect
the function of other sensitive
devices that are not protected.
• Only use the headphones in
environments where the use of
Bluetooth®is permitted.
CAUTION
Extended listening at high
volumes may lead to
hearing loss!
• To avoid damage to your health,
avoid extended listening at high
volumes.
• If the headphones are set to full
volume, it may produce very high
sound pressure. This might have
psychological consequences and
also cause physical injury. Children
are especially at risk. Set the
volume control of your player to low
volume before you turn it on.
NOTICE
Risk of damage! Improper
handling of the headphones may
result in damage.
• Ensure that the headphones do
not become wet, and protect them
from moisture, heat (e.g. during the
summer in cars) and mechanical
influences (e.g. severe shocks,
pressure and falling).

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Disposal
Old devices must not be
disposed of with house-
hold waste!
Electrical equipment
contains harmful
substances and valuable resources.
Every consumer is required by law
to bring all old electrical devices to
an authorised collection or return
point so that they can be disposed of
in a manner that is environmentally
friendly and preserves resources.
You can hand your old electrical
devices over to the local reusable
materials/recycling centre.
Please contact your vendor directly
for more information about this topic.
Batteries and rechargeable
batteries do not belong in
the household garbage!
Every consumer is required
by law to bring all batteries and
rechargeable batteries, regardless
whether they contain harmful
substances* or not, to a collection
point run by local authority, borough,
or to a retailer, so that they can be
disposed of in an environmentally
friendly manner.
Please only turn in batteries and
rechargeable batteries that are
empty!
* labelled with: Cd = cadmium, Hg =
mercury, Pb = lead

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Trademarks
© All trademarks are the property of
their respective owners.
Apple, iOS and Siri are trademarks of
Apple Inc., registered in the U.S. and
other countries.
Android and Google Assistant are
trademarks of Google LLC.
The Bluetooth®word mark and logos
are registered trademarks owned by
the Bluetooth SIG, Inc. and any use of
such marks by Lautsprecher Teufel is
under license.
Qualcomm®aptX™is a product
of Qualcomm Technologies
International, Ltd.

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1. Introduction
The Teufel REAL BLUE IN In-Ear
Bluetooth headphones enrich an
athletic and active lifestyle. Please
read this user manual before
using the headphone for the first
time, it will provide you with useful
information and help you get started.
Features:
• Bluetooth 5.0
• IPX5 waterproof
• 15 hours playtime
• Qualcomm aptX & AAC support
• Comfortable and secure fit during
exercising
• ShareMe allows sharing of audio
from two Teufel REAL BLUE IN
• Multipoint supports simultaneous
connection with two smart devices
• Teufel Headphones app

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2. What’s in the box
Unpack the box carefully and ensure
that the following parts are included.
If any part is damaged or missing, do
not use it and contact your retailer or
customer service representative.
Headphones
Pouch
Eartips (M pre-mounted to the
headphones)
Ear hooks (M pre-mounted to the
headphones)
USB C Charging Cable
Quick Start Guide & User Manual

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3. Product overview
The User Interface of “REAL BLUE IN”
has the following elements:
1. Multi-Purpose Button
2. Volume Up Button
3. Volume Down Button
4. USB Charging Slot
5. LED indicator
6. Build-in Microphone







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4. Getting started
4.1 Switching On or Off
1. Press and hold the Multi-
Purpose Button for 2 seconds,
the headphone will turn on and
automatically enter pairing.
2. Press and hold the Multi-function
button for 4 seconds and the
headphone will switch off.
4.2 Choosing the
correct eartips
For optimal audio performance, it
is important to choose the correct
eartip size. Select the size that gives
you the best comfort and fit in each
ear. To determine the best fit, you
may need to try all three sizes. You
may need a different size for each
ear.
NOTICE
To test the fit, try speaking
aloud. Your voice should
sound muffled in both ears; if
not, select another tip size.
Insert the right headphone into your
right ear and the left headphone into
your left ear.
Insert the headphones at a slight
angle into the ears and twist them
slightly into the ear canal so that they
sit comfortably and snugly.
In addition to the normal ear pieces,
we also offer ear hooks with a shark
fin design, which are more stable to
wear during sports, so you don’t have
to worry about accidental falling off
and other problems.

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4.3 Connecting with
the headphone
1. Press and hold the power button
for 2 seconds to switch on the
headphones.
2. If the device has not been
connected to before (or has been
reset), the device will automatically
enter pairing mode. This is
indicated by the LED flashing blue,
and with audio feedback.
3. Open the Bluetooth settings on
your device and add a new device.
Then select the ‘Teufel REAL
BLUE IN’ from the list of available
devices. If pairing is successful, the
LED will stay blue for 3 seconds,
and there will be audio feedback
from the headphones.
Set Bluetooth
Bluetooth
Device
Teufel REAL BLUE IN
ShareMe
The Teufel REAL BLUE IN is equipped
with ShareMe feature and can share
music between two sets of Teufel
Real Blue In headphones wirelessly
and simultaneously.
1. Establish a Bluetooth connection
on the first set of headphones.
2. Start music playback on the first
set of headphones.
3. Press the Volume Up button
& Multi-Purpose button at the
same time on the first set of
headphones. The LED flashes
purple quickly and the headphones
will also give audio feedback. The
first set of headphones is now
ready to connect to the second set
of headphones.
4. Switch on the second set of
headphones and then press the
Volume Up button & Multi-Purpose
button at the same time. The
LED flashes purple quickly and
the headphones will also emit an
acoustic signal.
NOTICE
Make sure that the music
is paused on the second
headphone if it is already
connected to a smart device.

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5. When connection of the two sets
of headphones is successful,
both sets of headphones will give
audio feedback and the LED will
illuminate in purple for 2 seconds.
The music on the first set of
headphones will then be shared
with the second set. Playback
controls can be done on either set
of headphones.
6. To end music sharing, press the
Volume Up button & Multi-Purpose
button at the same time on either
set of headphones. Both sets
of headphones will give audio
feedback when music sharing has
ended.
Information on the Bluetooth
wireless connection
The headphones are compatible with
Bluetooth 5.0.
If your audio source supports high-
resolution audio encoding methods
SBC, AptX, AAC, it will automatically
play high audio quality music.
The paired devices immediately
establish the Bluetooth wireless
connection after switching on and are
ready for use.
When you switch the headphones on,
they automatically try to connect to
the last connected Bluetooth device.
The headphone can store up to 7
phones that have been paired and
support connections with two smart
devices at the same time.
4.4 Teufel Headphones
App
Download the Teufel Headphones
App for IOS and Android and enhance
your headphone experience.
Features:
– Control ShareMe via App
– Configure EQ Presets and Equalizer
settings according to your personal
preferences
– Configure the auto-standby time

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5. Using the headphones
LEGEND
Press & Hold
Press
Double Press
Tripple Press
Middle Press (2s)
Long Press (4s)
Very Long Press (8s)
Button Combination
Pressed
Multi-Purpose Button
Power On (when off)
Power Off (when on)
Playback Control
Play/Pause
Next Track
Previous Track
Calls
Accept Call
Reject Call
Terminate Call
Power on & Initiate Bluetooth
Pairing (when off)
Invoke Voice Assistant
Stop Voice Assistant
Enable ShareMe Feature
(+ & MPB simultaneously)
(De-)activate auto-play Feature
(- & MPB simultaneously)
Volume Up Button
Enable ShareMe Feature
(+ & MPB simultaneously)
Increase volume by 1 step
Continuously increase volume
Volume Down Button
(De-)activate auto-play Feature
(- & MPB simultaneously)
Decrease volume by 1 step
Continuously decrease volume
Power on & Delete Bluetooth
device list (when off)
Multi-Purpose Button
Volume Up



Volume Down

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6. Charging
6.1 Charging the
headphones
The headphone is charged with a
USB charging cable.
NOTICE
Before charging, be sure that
the headphones are at the
correct operating temperature
of between -10 °C and 45 °C.
6.1.1 Charging time
Allow up to 2 hours to fully charge the
headphones.
NOTICE
A full charge of the
headphones allows up to
15hours of use.
6.1.2 Check the headphone
battery level
While using the headphones
If connected to an Apple or Android
device, the device displays the
approximate battery level near the
upper right corner of the screen and
in the notification bar.
This displayed battery level is not
accurate. To get the real-time battery
level, use the Teufel Headphoes app
for Android or iOS.
While charging the headphones
When a headphone is connected to
a power supply, its corresponding
charging indicator glows according to
charging status.
The BT function is also available
during charging.
Battery status
0% - 20% Slow Pulsing - red
21% - 44% Slow Pulsing - yellow
45 % - 99% Slow Pulsing - green
100% Solid green - fades out
after one minute.

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7. Troubleshooting
Common solutions
If you experience problems with your
headphones or USB charging cable:
1. Check the power indicators.
2. Charge the headphones.
3. Increase the volume on your
mobile device.
4. Change the USB charging cable to
charge the headphones.
5. Try connecting another mobile
device.
If you cannot resolve the issue, see
the table below to identify symptoms
and solutions to common problems.
If you are still unable to resolve
your issue, contact Teufel customer
service.
Symptom Solution
Headphones don’t power
on
1. Start charging the headphone.
2. Make sure the headphone is not in standby mode and
wake it up.
Headphones don’t
connect with mobile
device
1. Make sure your mobile device supports Bluetooth
technology.
2. On your mobile device: Turn the Bluetooth feature
off and then on.
3. Delete your Teufel REAL BLUE IN In-Ear
headphones from the Bluetooth list on your mobile
device. Connect again.
4. Move your mobile device closer to the headphones
and away from any interference or obstructions.
5. Connect a different mobile device.
6. Clear the headphones pairing list and connect again.

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Symptom Solution
Headphones don’t
charge
1. Make sure the headphone is properly charged
using USB.
2. Make sure there is no dirt or debris covering the
charging conductors within the case or on the
headphones.
3. If your headphones have been exposed to high or
low temperatures, let the headphones return to
room temperature and then try charging again.
To clear the BT device list Press and hold the volume down button for 10 seconds
when in off stage.
No sound
1. Press Play on your mobile device to make sure the
audio track is playing.
2. Connect the headphone to the USB charging cable
to check the charging status of the headphone. If
needed, charge the headphone.
3. Increase the volume on the mobile device.
4. Move your mobile device closer to the headphone
(10 m) and away from any interference or
obstacles.
5. Use other music sources.
6. Connect other mobile devices.
Poor sound quality
1. Make sure that both headphones fit securely in your
ear.
2. Use a different music source.
3. Try connecting another mobile device.
4. Move your mobile device closer to the headphones
(10 m) and away from any interference or
obstructions.
5. Clear any debris or wax buildup from the headphones
and headphones nozzles.
Eartips falling off Securely attach the tips to the headphones.

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8. Technical Data
Driver Size : Ø10mm
Max Level during BT playback: 100dB SPL (A) (According to EN-50332)
Acoustic THD: ≤0, 5% @ 0dBFS (20Hz–20kHz),
aptXcodec
Sensitivity: - 4 2d BV/ Pa @1 kHz
Frequency range: 15 Hz – 20 kHz (-1dB)
You can find further technical data on our website.
Technical changes reserved!

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9. Declaration Of Conformity
Declaration of Conformity
Lautsprecher Teufel GmbH hereby declares that this product complies
with the requirements of the directives 2014/30/EU, 2014/35/EU and
2014/53/EU to the extent they are installed and used in accordance with the
instructions of the manufacturer. The full text of the EU declaration of conformity
is available at the following Internet address:
www.teufelaudio.com/konformitaetserklaerungen.html