Description  Logitech ClearChat Pro USB Stereo Headphones w/Boom Microphone (Black/Gray)   ****  BRAND NEW, Sealed, Never Been Opened  **** For All Of Your Computer Needs! --   We Sale All Brands name, Highest Quality, Lowest Prices, (See my feedback we have a lots of satisfied customers)! High-performance digital audio for PC calling, music, and gaming! This Logitech ClearChat Pro USB Headset features laser-tuned audio drivers that deliver premium acoustic performance. The Headset-based, SoundSwitch equalizer offers three presets, which instantly optimize audio for Internet communications, music, or PC gaming! A rotating, noise-canceling microphone puts the focus on your voice by reducing background chatter, and easy-access volume and mute controls on the headset let you quickly adjust audio!     Features/Specifications:     Logitech ClearChat Pro USB Headset   General Features: Black & gray color USB compatible (1.1 and 2.0) Cable Length: 8-foot Frequency response: Headset: 20 Hz–20 kHz Microphone: 100 Hz–10 kHz Input sensitivity: -62 dBV/µbar, -42 dBV/Pa +/- 3 dB Laser tuned audio drivers SoundSwitch equalizer Noise Cancelling Microphone Flexible Boom Mute indicator Quick-access audio controls on the headset Digitally enhanced USB audio   Regulatory Approvals: FCC CE C-Tick MIC   Package Includes:     Logitech ClearChat Pro USB Headset   Additional Information:     Notes: Model: ClearChat Pro P/N: 981-000010   Product Requirements: Available USB port Windows 2000/XP/Vista Mac OS X (10.2.8 or later)