Product Features
  1. Volume and Microphone Switch In-Line --- Quick Access to Headset volumeControl and Microphone
  2. Easy Adjustable Headband Ensures Optimum Fit and Comfort
Earphone Hook Included --- Convenient and practival for you to hang your headset up when you do not use it. 

Specification
Technical Data
Frequency response: 20Hz - 20KHz
Nominal Impedance: 32 ohm
Sensitivity: 97dB / 10mW / 3mm
Jack plug: OD3.5mm stereo
Cable Length: 6.5 foot