Experience the Arc Touch Mouse: there is no equal in look, feel, and performance. With a dramatic design and easy elegance, this stylish mouse is a perfect fit for your lifestyle. Flick to zip down the page. Tap to stay at your destination. Feel the speed and responsiveness to your touch. Product Description Microsoft Arc Touch Mouse - mouse Device Type - Mouse Connectivity Technology - Wireless - 2. 4 GHz Colour - Black Orientation - Right and left-handed Dimensions (Wx Dx H) - 5. 88 cm x 13 cm x 1. 5 cm Weight - 88 g Wireless Receiver - USB wireless receiver Movement Detection Technology - Optical Buttons Qty - 2 Movement Resolution - 1000 dpi Performance - 8000 fps, up to 72 inches per second Touch-sensitive scroll, on/off power switch, Microsoft Blue Track Technology, Nano wireless receiver Battery - 2 x AAA OS Required - Microsoft Windows Vista / XP / 7 Microsoft Certification - Compatible with Windows 7