* Material: silica gel
* Total length of earphone: 93cm; Weight: 27g
* Bluetooth 5.3; Chip: JL AC7003
* Battery capacity: 200mAh; Charging time: about 1.5 hours
* Service time: 30 hours; Standby time: 200 hours
* Chinese and English prompt tone is supported. When not connected,
double click the function key with prompt tone