A4Tech HS-7P Comfort Fit Stereo Over-Ear Headset

Earphone Hook Included—Convenient and Practical for you to Hang your Headset up when you do not use it.
Volume and Microphone Switch In-Line—Quick Access to Headset Volume Control and Microphone
3.5mm Eaphone and Microphone Plug to be Connected with your Computer
Easy Adjustable Headband Ensures Optimum Fit and Comfort.

Specifications:

Frequency response: 20Hz-20KHz
Nominal Impedance: 32 ohm
Sensitivity: 97dB/10mW/3mm
Jack pulg:OD3.5mm stereo
Cable Length: 2m