1. Output Power: 3W x 2PCS 
2. Bluetooth: 2.1 
3. Bluetooth distance: 10-15 meters 
4. Frequency response: 80Hz-20kHz 
5. S/N Ratio: >85dB 
6. Input Sensitivity: 600mv RMS 
7. Driver: 2"4Ω 
8. Power supply: Build-in Lithium battery 
9. Lithium battery: 3.7V 1500mA (8hours) 
10. Size: W155*D45*H55(mm)