Specifications
Frequency Response: 20Hz~20KHz
Driver Unit: 40mm special mylar
Impedance: 50Ω±15%
Max Power Output: 120 mW
Active noise frequency: 70 Hz ~ 1.2KHz
Noise Amplitude: 20+/-2dB
Auto Direction: 0.05% ~ 1%
Current Consumption: 10~18mA
Power: AAA x 2 batteries
Battery Life: Approx. 60hours
Weight:Approx.185g

Accessories
Dual-plug adapter/1/4 inch stereo plug adapter /Carry Bag /Volume control with 1.3 cable
Characteristic
-Reduce ambient noise by 70~80%
-Ergonomically design for the most comfortable listening experience
-Up to 20dB of noise cancellation; effectively reduces aircraft or subway engine noise
-Large 40mm driver with clear sound and well defined bass