Aircraft active noise cancelling headphones JH-310

*. Active noise cancelling technology to enhance the power of noise filtering.
*. Block the external noise to offer a superb listening experience.
*. Headphone foldable, convenient for traveling users especially for users in noisy environment like subway, airline, highway, etc.
*. Driver unit: 40mm dynamic speakers
*. Impedance : 32O±10%
*. Frequency response : 20Hz - 20KHz
*. Reduction level: >20dB at 300Hz
*. Sensitivity: 102 dBµv at 300Hz
*. Cord length: 1. 2m
*. Plug: 3. 5mm stereo plug(plug type can be changed according to customers' requirement)
*. Power requirement: 2 × AAA batteries(not included)
Aircraft active noise cancelling headphones JH-310