1. Bluetooth 5.3; chip: JL AC6925F 2. Battery capacity: 200mAh; Charging time: about 2 hours 3. Use time: 7 hours; Standby time: 120 hours 4. Size: 182 * 170 * 76mm; Weight: 143g 5. Support Bluetooth, TF card and AUX mode 6. Support prompt tone in both Chinese and English: Double click the power button in the unpaired state