•  Professional grade stereo headphone supply to audio performance
•  With an adjustable headband, suitable for any head or ear sharp
•  You can select proper sound by control volume
•  For higher quality sound reproduction of voice and music 

Specifications:
Microphone
•  Directivity: Uni-directional
•  Frequency Response: 30Hz~16KHz
•  Impedance: 32 OHM at 1KHz
•  Sensitivity: 9x7/-57±3dB
•  Connector: 3.5mm stereo plug
Headphone
•  Drive Unit: 40mm dia.
•  Impedance: 32 OHM/1KHz
•  Frequency Response: 20~20KHz
•  Sensitivity: 105dB/nW±4dB
•  Connector: 3.5mm stereo plug