Category: Active noise canceling headphones working voltage: 3.7V the maximum output power: 90MW the noise level :18-20db the signal to noise ratio (SNR): ≥ 90db power supply: 120mA lithium battery Rated operating time:> 20h noise reduction modes: dual microphone noise feedback Speaker diameter: 40mm Speaker Impedance: 32Ω speaker frequency response: 20Hz – 20KHz Speaker sensitivity: 115dB the noise level: ≤ -78dBA the dynamic range: ≥ 78 dBA Distortion THD: ≤ 0.1% Stereo crosstalk: ≤ -52 dBA cable length: 1.5M N/W: 175g G/W: 430g Package Contents: 1 x Active Noise Cancelling Headphone 1 x aviation Aircraft Headphone plugs 1 x Storage Bag 1 x USB cable
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We are in Huaqiang North, Shenzhen city, China. The No1. Electronic street of the World, majoy the earphone & Headphones and Accessary business from 2009.
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