Putting The Mm 100 Into Operation; Charging The Headset Battery - Sennheiser MM 100 Instruction Manual

Meaning during charging
LED colour Meaning during charging
red Charging mode
Charging complete
blue*
* The LED switches off after 1 hour to save battery power.

Putting the MM 100 into operation

Charging the headset battery

If you charge the battery for the first time, allow charging for at least 3 hours without interruption. Later, 2.5
hours will suffice to fully charge the battery.
If you charge the MM 100, it will stop any operation and go into charging mode.
A fully charged battery provides a playback time of up to 7.5 hours or a standby time of up to 220 hours.
When the battery is about to run flat:
• All indications of the LED turn red.
• A low battery warning (three beeps) is heard in the headset.
• You have several minutes of battery reserve. When the battery is empty, you first hear the three warning
beeps and then a descending sequence of tones in the headset. The headset switches off.
To charge the headset's built-in battery via the MM 100 power supply
CAUTION! Danger of injury!
Wearing the headset when charging can cause burns and injuries.
Do not wear the headset when charging.
Take off the headset and switch it off (see page 9).
Connect the charging plug
Connect the MM 100 power supply to the mains.
During charging, the LED
continuously for max. 1 hour. As long as the headset is connected to a power source, all operating buttons are
blocked.
You can also charge the MM 100 via an USB port using the supplied USB cable.
to the socket for power supply
lights up red continuously. When charging is complete, the LED
Putting the MM 100 into operation
:
.
turns blue
7