noise cancelling headphone CS-ANC101W

Description

Speecifications:
Input terminal: 3.5mm stereo plug
Work voltage: 3.7v
Max. Input power: **0mW
Max. Output power:*0mW
Noise cancellation depth: *8dB
Noise cancellation frequency: *****0Hz
S/N:≥*5db
Power supply:3.7v/**0mAhlithium chargeable battery
Batterywork time: >*5h
Noise reduction mode: feedback active noise cancellation  
Speaker diameter:Φ*0mm
Speaker impedance: *2Ω
Speaker frequency range:*0Hz**0KHz
Sensitivity: **5dB

Package
single net weight: **2g
single gross weight: **3g
single size: *8X*8X5.8cm 
*0pcs 1 carton
carton size: *1X*8X*8cm 
gross weight: 9.5kg