Speaker:40mm Dynamic type
Impedance:32 Ohms
Sensitivity:105dB±4dB
Frequency:50~16000Hz
Max.Input Power:100mW
Microphone:Condenser type
Sensitivity:-58dB±3dB
Frequency:50~16000Hz
Cord length:(1.2M)±3%
Connector:3.5mm stereo plug
Volume Control(optional):Yes