Califone 3066AV Deluxe Multimedia Stereo Wired Over-the-head Headset, 3.5mm Plug, Black, White

Califone 3066AV Deluxe Multimedia Stereo Wired Over-the-head Headset, 3.5mm Plug, Black, White

Designed for language learning in today s classrooms. It s noise reducing earcups and microphone help filter out external distractions to keep students on task. It s also ideal for VoIP applications, gaming, and for use in computer labs and other multimedia applications. Headphone: Speaker 40mm Mylar with Cobalt Magnet, 25 Ohms +- 15% impedance, Frequency Response 20-20,000 Hz, Sensitivity 107dB SPL ± 3dB at 1kHz, Input Min. input 20 milliwatts, max. 40 milliwatts, R/L Output Diff 3 dB, Distortion 5% Input Connection 3.5mm, black jacketed, nickel plated stereo, Black leatherette Earpad, Cord 7 straight, attached volume control, permanently attached for classroom safety. Omnidirectional Electret condenser Microphone, Sensitivity -38dB, standard, min -35dB, max -41dB, Frequency Range 10-10,000 Hz, Impedance 1,500 Ohms +- 15%, Operating Voltage 2V up to a maximum 10V, 3.5mm plug, red jacketed, nickel plated.