Using The Headphones - Sennheiser M3AEBTXL Instruction Manual

Using the headphones

Information on the rechargeable battery and the charging process
The headphones have a built-in rechargeable battery. A complete charging cycle takes about 3 hours.
The headphones provide 1.5 hours of playback time with a charging time of approx. 10 minutes.
Before using the headphones for the first time, charge the rechargeable battery for a complete
charging cycle without interruption.
When the headphones are being charged, the LED lights up (>
When the battery charge drops to a critical level, a voice prompt asks you to recharge the headphones
("Recharge headset").
Sennheiser recommends to charge the headphones using the supplied USB-C cable and a compatible
standard USB-C power supply unit.
While the headphones are being charged, you can still listen to music or make phone calls. In this
case, however, the charging time may be longer.
Charging the headphones' rechargeable battery
1.Connect one of the USB-C connectors of the USB cable to the USB-C socket of the headphones.
2.Connect the other USB-C connector to a corresponding socket of a USB power source (* to be ordered
separately). Make sure that the USB power source is connected to the power supply
system.
The charging process of the headphones begins. The LED displays the charge status:
LED Meaning
Overview of the LED indications).
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