1. Output power: 7W (actual: 5W+5W)
2. Functions: Bluetooth, Optical, Coaxial (S/PDIF), AUX; Computer Audio
3. Frequency: 63 Hz -20 khz
4. Speaker size: 2 inches * 2
5. Signal to noise ratio: ≥ 85 decibels
6. Impedance angle: 4 Ω
7. Bluetooth: 5.3
8. Charging power: DC5V ≥ 2A
9. Battery: 3.7 v/1500 mah
10. Battery working time: 6 hours
11. Charging time: 3 hours
12. Integrated microphone for voice calls
13. Attachment: C-type cable/manual