Microsoft ZX-6000 LifeChat USB Headset This comfortable headset features a Windows Live Call Button that makes calling fast and easy, wireless 2.4-GHz technology up to 30 feet, and an advanced battery that lets you talk up to eight hours between charges. Features: * Digital Speaker: Advanced speaker deliver crystal-clear audio. * Noise-cancelling Microphone: The noise-cancelling microphone automatically picks up your voice with remarkable clarity. * Padded Ear Cup and Adjustable Earband: Comfortable earpiece and two adjustable earbands for a custom fit. * Optimized for Windows Live Messenger: Seamlessly integrated with Windows Live Messenger for easy setup and use. * Wireless Headset Convenience: Four LEDs indicate out-of-range, battery life, charging, and connection status. * Wireless Technology: Wireless 2.4-GHz technology with up to 30-foot range. * Rechargeable with Eight Hours of Talk Time: The advanced battery delivers up to eight hours of talk time on a singlerecharge. System Requirements: Windows Vista or Windows XP with Service Pack 2 (SP2), 100 MB free Hard Drive space, USB 1.1 port or higher (USB 2.0 recommended), Intel Pentium III 550 MHz (Intel Pentium 4 1.4 GHz recommended) or higher, CD-ROM drive, Broadband Internet access required; access fees may apply.