Specifications: Category: Active noise cancelling headphone Output terminal: 3.5mm mini stereo plug (gold-plating) Power supply: lithium ion battery Battery capacity: 250mAH Working voltage: 3.7V The maximum input power: 400mW The maximum output power: 90mW Noise level: 23db Noise ratio: 50-1200hz The signal to noise ratio(SNR): ≥85db The working time: ≥35h The noise reduction modes: the feedback of before and after combined with the active noise cancelling Speaker diameter: Ф40mm Speaker impedance: 32ohm Speaker frequency response: 20 - 20K Hz Speaker sensitive: 115dB Speaker type: Neodymium magnet high-end speaker Beryllium material: pet corona material Beryllium thickness: 19mil Wire length: 1.2m Wire material: TPE（Thermoplastic Elastomer）shielded wire Earmuff material: Protein intradermal filling inert memory sponge Net weight: 181g (Just one headphone), 504g (included the package and the accessories) Inner package size: 21.5*19.7*5.5cm Outside package size: 22.2*21.6*6.9cm Color: Sliver/Black/Ashy Package included: 1x Active noise cancelling headphone 1x Headphone bag 1x Aircraft plug 1x Audio connecting wire 1x With microphone audio connecting wire 1x Charger cable 1x User manual
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