1, Bluetooth version: V5.4 Waterprint Wood Speaker Double Alarm Clock FM Radio TWS Speaker 2. Rated Power: Double Diameter: 5W*2 3. AUX input: 3.5 LINE interface. Sensitivity: 650MV 4. Bluetooth distance: >15 meters. 5. SNR: >80dB. 6, Clock alarm and FM function. 7, Battery model capacity: 3.7V 3000mAh 8, Charging time: 2 hours 9, Charging voltage: DC 5V 10, Talk time: about 8 hours 11, Playtime: max volume: 6H, 80% volume: 8H, 50% volume: 10H 12. Standby time: up to 400 hours