Features:

- Bluetooth & Active Noise Cancelled Function
- Noise canceling level is 23dB,

- 1. Bluetooth ANC Headphone, active noise cancellation, cancell the noise outside actively

- 2. Same speaker driver as Bose, stereo Sound, good sound quality

- 3. Power off could use Aux-in function

- 4. High-end design, fashionable

- 5. Scalable, rotatable, adjustable, easy to use

- 6. Soft earmuff, comfortable to ware

- 7. With Microphone for handsfree

- 8. Line-in function                                                                                                             

- 9. Biuld-in 800mAh battery, 36 hours playing time                                                                       

- NFC for option, cost $0.5/pc

- Load impedance: 32ohms

- Frequency range: 20Hz-20KHz
- S/N: >85dB 

- Power: Lithium battery or Micro USB cable

- Function spec: ANC, Bluetooth, Line-in, Microphone