Sennheiser HD 4.50 BTNC Owner's Manual
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HD 4.50BTNC
Troubleshooting
Leaving the Bluetooth transmission range
Wireless calling and streaming are only possible in the
Bluetooth transmission
range of your smartphone. The transmission range largely depends on
environmental conditions such as wall thickness, wall composition etc. With a
free line of sight, the transmission range of most smartphones and
environmental conditions such as wall thickness, wall composition etc. With a
free line of sight, the transmission range of most smartphones and
Bluetooth
devices is up to 10 meters.
If the headphones leave the
Bluetooth transmission range of the smartphone,
the sound quality deteriorates and you hear the voice prompt “lost connection”.
At this point, the connection breaks down completely. You can re-establish the
connection if you re-enter the
At this point, the connection breaks down completely. You can re-establish the
connection if you re-enter the
Bluetooth transmission range and you hear the
voice prompt ”connected”.
X
To re-establish the connection, press the multifunction button.
Clearing previously paired devices
X
Set the headphones to pairing mode, see page 16.
The LED flashes blue and red. The headphones are in pairing mode.
The LED flashes blue and red. The headphones are in pairing mode.
X
Simultaneously press the multifunction button and the power button for
4 seconds.
The LED flashes purple 3 times. The headphones are permanently disconnected
from all devices and immediately go into pairing mode.
4 seconds.
The LED flashes purple 3 times. The headphones are permanently disconnected
from all devices and immediately go into pairing mode.