Samsung HM-1300 用户手册

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页码 149
7
English
Repeatedly charging and discharging of the headset, over time will cause the 
battery performance to diminish. This is normal for all rechargeable batteries.
Never make or receive calls while charging, always disconnect your headset from the 
charger and answer the call.
When the headset battery is low
The headset beeps and the indicator light flashes red. If the headset powers off during 
a call, the call will be automatically transferred to the phone.
Checking the battery level
To check the battery level, press and hold the Talk button and the Volume down 
button at the same time. Depending on the battery level, the indicator light flashes 
5 times in one of the following colours:
Battery level
Indicator light colour
Above 80%
Blue
80 ~ 20% 
Violet
Below 20%
Red