1.Bluetooth 5.3; Chip: Blue trum AB5656 2. battery capacity: 200mAh; Charging time: 2 hours 3. use time: 20 hours; Standby time: 180 hours 4. size: 178*172*63mm; Weight: 109g 5. support Bluetooth, AUX and other modes 6. Prompt tone in English and Chinese is supported: Double click the power button in unpaired state.
