1, Bluetooth 5.3; Chip: JL AC6955F 2. Battery capacity: 300mAh; charging time: about 2 hours 3. Use time: 10 hours; standby 180 hours 4. Size: 190*180*76mm; Weight: 165g 5. Support Bluetooth, AUX and other modes 6. Support Chinese and English prompts: double-click the function key in unpaired state