Samsung HM1800 用户手册

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This headset has a rechargeable internal battery which is non-removable. Make sure 

the headset is fully charged before using it for the first time. 

Connect the travel adapter to the charging socket on 

the headset. 
Plug the travel adapter in to the wall outlet. During 

charging, the indicator light will turn red. If charging 

does not begin, unplug the travel adapter and plug 

it in again.
When the headset is fully charged, the red indicator 

light changes to blue. Unplug the travel adapter from 

the wall outlet and the headset.

Use only Samsung-approved chargers. Unauthorised or Non-Samsung 

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chargers could cause damage to the headset or in extreme circumstances an 

explosion, it could also invalidate any warranty on the product.
Repeatedly charging and discharging of the headset, over time will cause the 

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battery performance to diminish. This is normal for all rechargeable batteries.