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Noise cancelling wireless headphone NB-1090
· Industy-leading active noise cancelation technology，up to 25dB noise reduction.
· High quality audio with specially developed 40mm drivers
· Premium steel headband.
· Ultra-comfortalbe, over-ear memory-foam earpads.
· Very flexible folding and swiveling mechanic.
· Easily process music and phone call.
- Parameters
· Industy-leading active noise cancelation technology，up to 25dB noise reduction.
· High quality audio with specially developed 40mm drivers
· Premium steel headband.
· Ultra-comfortalbe, over-ear memory-foam earpads.
· Very flexible folding and swiveling mechanic.
· Easily process music and phone call.
Bluetooth chipset: V5.3
Bluetooth profiles: HSP、HFP、A2DP and AVRCP
Noise reduction: 25dB
Battery: Lithium battery 250mAh
Driver unit: 40mm neodymium
Sensitivity: 102dB±3dB
Frequency: 20-20KHz
Impedance: 32Ω
Working time : 10 hours at medium volume
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