1. Working Range Up to 10M 2. Working Time : 5 Hours 3. Loudspeaker Output : 3/4w 4. Frequency response : 120Hz-20KHz 5. Signal-to-Noise: >75dB 6. Capacity: 3.7V 880mAh 7. Charging: 5V/420mA 8. Size: 52x 52x 55Hmm 9. TWS usage method: Double-clock the ‘+’ button 10. Shake usage method: Double-clock the ‘-‘ button 11. BT/TF/FM Mode usage method: Double-click the “power” button