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NOTE:
Your mobile phone must support this function.
Voice control
Press the ON/OFF button (2) for a short time in order to
activate the voice control in your mobile telephone. A confir-
mation sound can be heard (emitted from the headphones).
Please consult the manual for your mobile phone.
NOTE:
• Your mobile phone must support this function.
• The mobile phone may not be in the music replay
setting.
Replace the Ear Cushions
(Spare ear cushions not included.)
1. Carefully detach the foam retainer from the earpiece cap.
2. Remove the old foam.
3. Tuck the new foam into the foam retainer.
4. Push the foam retainer onto the earpiece cap in such a
way that the lugs slot into the round retainers.
Cleaning and storage
CAUTION:
Do not immerse the headphones in water!
• There are no parts inside the device which can be main-
tained by the user.
• Clean the headphones with a slightly damp cloth and no
additional cleaning agents.
• In order to store the headphones without taking up too
much space, you can turn the earpiece caps 90° in one
direction.
Troubleshooting
Symptoms
Possible cause
Headphones
Battery empty
cannot be
turned on
No audio
Headphones are
signal during
turned off
Bluetooth
Headphones are
connection
not paired with the
audio source.
Volume too low
Symptoms
Headphones
cannot be
connected
Technical Specifications
Model: .............................................................................KH 4223 BT
Audio connection: .................................. 3.5 mm stereo jack plug
Net weight: ............................................................approx. 0.139 kg
Battery: .........................................3.7 V 420 mAh lithium polymer
Charging time: .................................................... approx. 3.5 hours
Operating time: ......................................................approx. 8 hours
Bluetooth
Bluetooth support: ........................................................V3.0 + EDR
Range: ..................................................................approx. 15 meters
Transmitting frequency:.......................................................2,4 GHz
Protocols: ....................................................................A2DP, AVRCP
The right to make technical and design modifications in
the course of continuous product development remains
reserved.
This device complies with the relevant CE Directives and is
designed in accordance with the latest safety regulations.
Disposal
Battery disposal
Solution
Charge the battery
( Page 23)
Environmental protection
Turn the Headphones
on.
Check whether the
connection exists. Pair
the Headphones with
the audio source again,
if necessary.
Increase the volume on
the headphones
Increase the volume on
the audio source.
English
Possible cause
Solution
Pairing does not
Check, whether the
work
audio source supports
the A2DP protocol.
Audio source is
Turn the audio source
turned off.
on.
Bluetooth is turned
Turn the Bluetooth
off on the audio
function on in the audio
source.
source.
The device has a rechargeable battery. Used
batteries and accumulators do not belong in
the household waste.
The batteries / accumulators must be
removed before the product goes into the
waste disposal. For this, consult qualified
specialized personnel.
Do not dispose of the device at the end of
its service life with normal household waste.
Bring it to the official collection point for
recycling. By doing this, you help protect the
environment.
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