*. Active noise cancelling technology to enhance the power of noise filtering. *. Block the external noise to offer a superb listening experience.
*. Headphone foldable and cable detachable design, convenient for traveling users especially for users in noisy environment like subway, airline, highway, etc.
*. Noise cancelling and common wired headphone available
*. Driver unit: 40mm dynamic speakers
*. Impedance : 32Ω±10%
*. Frequency response : 20Hz - 20KHz
*. Reduction level: >18dB at 300Hz
*. Cord length: 1. 2m
*. Plug: 3. 5mm stereo plug
*.Power requirement: 2 × AAA batteries(not included)

noise cancelling headphones