Putting the MM 450 into operation
Putting the MM 450 into operation
3h
1
3s
Charging the battery pack
Before using the battery pack for the first time, charge it for at least 3 hours.
When charging the battery pack outside the headset, the LED on the battery pack lights up red. When the battery pack is fully charged, the LED on the battery pack lights up green.
When the battery pack is almost flat, the Star LED on the headset flashes red. You hear a short, negative acknowledgement tone.
Type of use | Operating time |
Using the headset with NoiseGard and Bluetooth technology | 8 hours |
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Using the headset with NoiseGard only | 20 hours |
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Using the headset with Bluetooth technology only | 12 hours |
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The operating time of the battery pack depends on the device settings, the listening situation and the audio sources used.
Conserving the battery power
Remove the battery pack if the headset will not be used for extended periods of time.
Possibilities of charging the battery pack
a | b | ||||
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EU | US |
UK | AU |
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