Specification:
Color: Blue + Black
Material: ABS+PU leather
Size: length 19CM, width 17.5CM, thickness 4CM (length and width can be adjusted)
Earmuff: length 8.5CM width 7CM thickness 4CM
Headset: length 11CM width 1.3CM thickness 1.3CM
Earphone length: 190CM
Audio plug diameter: 3.5mm
Rated power: 100MV
Range of frequency response: 20HZ--20KHZ
Speaker diameter: 40 (phi mm)
Sensitivity: 108 (dB)
Impedance: 32 (Ω)
Distortion rate: 0.1 (%)
The use of headphones: listening to music, QQ voice chat, office use, Internet cafes and so on. Wide range of uses
Note: the product comes with volume adjustment function

Features:
Internet Calling
Lightweight, Comfortable & Convenient to use.
Adjustable Headband.
Volume control
MIC Mute switch