1. Bluetooth 5.3, chip: JLAC6925F 2. Battery capacity: 400mAh, charging for about 2 hours 3. Use time: 12 hours, standby time 200 hours 4, Size: 204*184*84mm; Weight: 199g 5. Support Bluetooth, TF card, AUX and other modes 6, Support Chinese and English prompt sound: double-click the function key in the unpaired state