Build-in mic. and speaker Independent sound chip to handle Softphone VoIP Voice Quailty Only one USB cable to handle both Mouse and Phone Big 1.3?? LCD screen with backlight support Dot matrix caller-ID Volume ControlM 800 DPI Optical sen... - Update: 2006-11-22

Build-in mic. and speaker Independent sound chip to handle Softphone VoIP Voice Quailty Only one USB cable to handle both Mouse and Phone Big 1.3?? LCD screen with backlight support Dot matrix caller-ID Volume ControlM 800 DPI Optical sen... - Update: 2006-11-23