EEB9027B Foldable Adjustable Comfortable Bluetooth Wireless ANC Headphone

1. Input terminals: Bluetooth Wireless+3.5mm pins

2. Working voltage: 3.7V 

3. Transmission distance:>10M

4. Noise level :25db 

5. Signal to noise ratio (SNR): >=90db 

6. Power supply: 600mA

7. Rated operating time:>=22h 

8. charging time: 1.5h

9. Noise Reduction Type: One-way feedback

10. Speaker diameter: Ф40mm 

11. Speaker Impedance: 32Ω 

12. Speaker frequency response: 20Hz - 20KHz 

13. Speaker sensitivity: 115dB 

14. Wire length: pvc wire, 1.2m