Because there is a lithium battery inside the Bluetooth headset, it needs to be charged before it can be used.
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2, the battery of the Bluetooth headset can transmit Bluetooth wireless signals, and the indicator light needs to use electricity.
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3, so when buying Bluetooth headphones, a charger or USB charging cable will be delivered inside the package.
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4, Bluetooth headset full charge takes about 2 hours, full charge can talk for about 6-7 hours