Features
•  High quality stereo headphone with high sensitive    condenser microphone
•  Comfortable design for properly adjusted neckband's    tension of ears long-time use
•  Microphone for ideal position adjustable
•  Convenient volume controller in cable
•  Avoid howling symptoms happened by separated    microphone and speakers
•  Ideal for voice & video chat, music, movies, skype,
   msn, video conferencing, voice recognition and
   multi-player internet gaming

Specification
MICROPHONE
•  Directivity: Uni-Directional
•  Frequency Response: 30Hz~16KHz
•  Impedance: 32 OHM at 1 KHz
•  Sensitivity: 9x7 /-57±3dB
•  Connector: 3.5mm stereo plug

HEADPHONE
•  Drive Unit: 30mm dia.
•  Impedance: 32 OHM / 1 KHz
•  Frequency Response: 20Hz~20KHz
•  Sensitivity: 105dB /nW±4dB
•  Maximum Input Power: 100MW
•  Connector: 3.5mm stereo plug