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Putting the MM 100 into operation
Meaning during charging
* 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.
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 ¹:
̈ Take off the headset and switch it off (see page9).
̈ Connect the charging plug ƹ to the socket for power supply ².
̈ Connect the MM 100 power supply to the mains.
During charging, the LED ¿ lights up red continuously. When charging is complete, the LED¿ turns blue
continuously for max. 1 hour. As long as the headset is connected to a power source, all operating buttons are
blocked.
LED colour Meaning during charging
red
Charging mode
blue*
Charging complete
If you charge the MM 100, it will stop any operation and go into charging mode.
CAUTION! Danger of injury!
Wearing the headset when charging can cause burns and injuries.
̈ Do not wear the headset when charging.
²
ƹ
You can also charge the MM 100 via an USB port using the supplied USB cable.