Retractable Mobile Bluetooth Stereo Headset with Handsfree Microphone
1. Input terminals: DCФ3.5DC Plug 4
2. Working voltage: 3.7V
3. Maximum output power: 90MW
4. Noise level: 20db
5. Signal to noise ratio (SNR): ≥ 90db
6. Power supply: 600mA lithium battery
7. Rated operating time: ≥28h
8. Noise Reduction Type: One-way feedback
9. Speaker diameter: Ф40mm
10. Speaker Impedance: 32Ω
11. Speaker frequency response: 20Hz - 20KHz
12. Speaker sensitivity: 115dB
13. Wire length: pvc wire, 1.2m