This earphone uses Bluetooth technology to connect to your device and enjoy your music for hours without any interruption.
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Bluetooth version: 4.2 version
Transmission distance: distance 10-18 meters
Battery capacity: lithium polymer battery 50mah
Charging instructions: Headset charging indicator: The headset charging red light is on, and the red light is off when the battery is fully charged.
Charging box charging instructions:
1. When charging the headset with the charging case: The green LED light on the charging case blinks, and the green LED light goes out when the headset is fully charged.
2. When charging the charging box: The green LED light on the charging box flashes, and the green LED light is on after the charging box is full.
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