Item: HP-258 Computer Headphone

Neck-band type

Driver Unit:Φ30mm
Speaker Impedance:32Ω±15%
Speaker Frequency Range:20-20KHz
Mic. Dimensions:Φ6*2.7mm
Mic. Sensitivity:-58dB±3dB 
Max. in put power:10mw
Input Plug Diameter:3.5mm
Cord Length:Appr.2.2m

Packing: 1pc/clamshell, 40pcs/ctn, Size/ctn: 72x39x38cm