1.computer headphone with microphone 2.High sound quality headphone 3.OEM headphone factory CE ROHS flat headphone for promoti

A.specification :

1) Mic Type: 9mm x 7mm
2) Impedance:maximum2.2KΩ
3) Sensitivity: -58db ± 2db(0db=1v/pa)
4) S/N Ratio:More than 60db
5) Sensitivity Reduction:Within-3db at 1.5v
6) Mic Frequency Range:30Hz-16,000Hz
7) Speaker: 40mm
8) Sensitivity:108db S.P.L at 1kHz
9)Plug Type: 3.5mm

B.packing details :

blister packing

40pcs/ctn

delivery time 30-35days after samples confimed

cheap and high quality computer headphone