Cyber Acoustics AC-400 MVC Stereo Mic/Headset for $12.54

This certified neckband-style combination headset and microphone offers great comfort, features and performance. Technical Specifications Sensitivity: -67dBV/microbar, -47 dBV/Pascal +/- 4 dB Microphone power source: 1.5 volts Frequency response - Microphone: 100 to 16,000 Hz Microphone Impedance: 680 ohms 7 ft. shielded cord 3.5 mm Stereo headset plug 3.5 mm microphone plug