1. Speaker: φ40mm
2. Magnet: Neodymium
3. Sensitivity: 110±3dB
4. Impedance: 32ohm±10%
5. Frequency Range: 20-20KHz
6. Normal Input(Rate Power): 40mW
7. Maximum Input(Power handing capacity): 100mW
8. Active Cancellation: Up to 18-20dB
9. Power: 3.7V
10. Capacity: 300mAh
11. Noise Reduction time: 8H
12. Bluetooth Time: 8H
13. Cord Length: 1.5m
14. Plug: 3.5mm