Headset w/mic & volume control
Driver Unit:  40mm                             
Frequency response:  20~20Khz        
Sensitivity:   110±3dB                         
Impedance:   32 ohm                          
Max imput power:  40mw                       
Mic frequency range:  20～20khz               
Mic sensitivity:    -58±3dB                       
Cord length:  2.1m                             
Plug:   3.5mm Stereo

Packing: Blister
Qtty: 20PCS/CTN 
Carton Size: 51*35*38cm
G.W.: 6 KGS
N.W.: 5 KGS