1. Model: YP-2
2. Bluetooth version: Bluetooth V4.2
3. Input mode: Bluetooth TF card
4. Speaker specifications: 45mm 4 ohms
5. Speaker power: RMS 3W
6. Rated output power: 3W
7. Charging voltage: 5V/1A
8. Signal to noise ratio: >=80dB
9. Distortion rate: =<10%
10. Frequency response range: 120Hz-15KHz
11. Battery capacity: 1800mAh/3.7V
12. Working hours: about 8-10 hours
13. Charging time: about 4 hours
14. Bluetooth transmission distance: 10 meters
15. Weight: 186 grams