Cisco 522 Headset - Stereo - Mini-phone (3.5mm) - Wired - 90 Ohm - 50 Hz - 18 kHz - Over-the-head - Binaural - Supra-aural - Uni-directional, Electret, Condenser Microphone

Mini-phone (3.5mm) host interface ensures dependable data transfer for maximum efficiency Hear every detail crisp and clear with a frequency response of 50 Hz-18 kHz Uni-directional microphone technology enables reliable voice transfer to ensure maximum usability Over-the-head earpiece design offers comfortable listening for a longer duration Wired connectivity technology offers maximum listening convenience Boom/On-cable microphone design offers convenient talk time with maximum efficiency Immense yourself in quality sound with this stereo headset Effectively cancels outside noise to eliminate distortion with maximum sound efficiency