Sennheiser PXC 550 Instruction Manual page 17

Getting started
Charging the headphones
You can charge the headphones regardless of their power state (on or off).
1. Connect the micro-USB plug of the charging cable to the micro-USB input of
the headphones.
2. Connect the USB plug to the USB port of your computer. If you are using an
external power adapter, connect the USB plug to the power adapter or to the
USB car charger adapter, and connect to the power source.
The LEDs flash/light up depending on the battery life of the headphones.
CHARGING TIME
3 h
For faster charging, charge the headphones while they are switched
off. For more information on playing music using the USB cable,
see page 31.
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* Accessories not included.
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