Computer Gear (24-1500) Headset with Clip-on Microphone This product is a Computer Gear 24-1500 Headset. This headset has the following features; Stereo Headphone & Microphone Clip-on Microphone Leather Ear Pads Adjustable Head Frame Volume Control Microphone on/off switch Supports internet, multimedia, voice recognition applications. Headhone Specifications: Drive Unit: 36mm Impedance: 32 Ohms +/- 15% Frequency Range: 20Hz - 20KHz Sensitivity: 100 +/- 4dB Max input power: 100mW Volume Control: Yes Connector: 3.5mm stereo Mic plug Microphone Specifications Directivity: Omni-directional Sensitivity: -54 +/-3dB Output impedance: 2.2 Ohms Frequency response: 20Hz - 20KhZ Operating voltage: 1.5V -10V DC Current consumption: 350mA max Sensitivity reduction: Within - 3dB at 1V Cord Length: 1.8M