Operation Manual

English
56
KH4232BT_IM 12.04.17
Cleaning
CAUTION:
Do not immerse the headphones in water!
• There are no parts inside the device which can be maintained by the user.
• Clean the headphones with a slightly damp cloth and no additional cleaning
agents.
Troubleshooting
Symptoms Possible cause Solution
Headphones
cannot be turned
on.
Battery empty. Charge the battery. (
Page 52)
The earphones
cannot be operat
-
ed properly.
The software of the ear-
phones has “hung up”.
Connect the earphones as
described in the “Charging the
built-in battery” chapter. The
earphones will be reset to the
factory default.
No audio signal
during Bluetooth
connection.
Headphones are turned
off.
Turn the Headphones on.
Headphones are not
paired with the audio
source.
Check whether the connection
exists. Pair the Headphones
with the audio source again, if
necessary.
Volume too low. Increase the volume on the
headphones.
Increase the volume on the
audio source.