product description:
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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