Information On The Bluetooth Wireless Connection - Sennheiser PXC 550-II Instruction Manual

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If the LED does not light up immediately during charging, clean
the charging contacts and charge the headphones until the
LED lights up again (>
battery).
You can speed up the charging process by charging the head-
phones when they are switched off. For more information on
listening to music using the USB cable, >
headphones using the USB
Connecting the headphones to a Bluetooth device
To be able to use the Bluetooth connection, you must register both devices (headphones and e.g.
smartphone) once. This process is called pairing.
If operation differs from the steps mentioned, also refer to the instruction manual of the Bluetooth
device you are using.
When you switch on the headphones for the first time, they
automatically switch to pairing mode.

Information on the Bluetooth wireless connection

The headphones are compatible with Bluetooth 5.0.
If your audio source supports one of the following high-resolution audio encoding methods, music is
automatically played in high audio quality: aptX, aptX LL or AAC. Otherwise the headphones will play
your music in normal audio quality (SBC).
Paired devices establish the Bluetooth wireless connection immediately after switch-on and are ready
for use.
On switch-on, the headphones automatically try to connect to the last two connected Bluetooth
devices. The headphones can save the connection profiles of up to eight Bluetooth devices with which
they have been paired.
Battery is approx. 2-20% charged
Battery is approx. 20-40% charged
Battery is approx. 40-60% charged
Battery is approx. 60-80% charged
Battery is more than 80% charged
Charging the headphones' rechargeable
Connecting the
cable.
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