*Microphone type:9*7mm
*Impedance:maximum 2.2K
*Sensitivity:-58db/-2db(0db-vv/vv/pa)
*Directivity:Omni-directional
*S/N ratio:more than 60dB
*Sensitivity reduction:with-3db at 1.5V
*Microphone frequency:30Hz-1600HZ
*Speaker:30mm
*Sensitivity:108db SP.L at 1 KHZ
*Speaker frequency:20HZ-20000HZ
*Impedance:32ohms
*Cold length: about1.8m
*Connection:3.5 stereo plugs*2
*With microphone
*Color:black