Headset with Clip-on Microphone, Volume Control, Adjustable Head

Clip-on microphone, Leather ear pads, Adjustable head frame, Volume control, Microphone On/Off switch. Headphone 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: 2.2K Ohms. Frequency response: 20Hz ~ 20KHz. Operating voltage: 1.5V ~ 10V DC. Current consumption: 350mA max. Sensitivity reduction: Within - 3dB at 1V.