Microsoft ARC Touch Mouse - Wireless 2.4Ghz Black Retail Flexible Design - Curve for comfort, flatten to store Touch to Scroll, Click. Tap. Flick. Control BlueTrack Technology Works on difficult surfaces Product Description Curve for Comfort, Flatten to Pack Experience the Microsoft 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. Flexible Design Curve for comfort, flatten to pack. A perfect fit for your hand?and your mobile lifestyle. Power On and Off Curve to turn on. Flatten to turn off. No button to switch. A green light flashes to show the battery is working, and then turns off to save battery life. Touch to Scroll Click. Tap. Flick. Control. BlueTrack Technology? Works on difficult surfaces1?rough glossy, or soft. 2.4 GHz?30-Foot Wireless Range The 2.4 GHz wireless USB Nano Transceiver connects wirelessly right out of the box with virtually no interference and has up to a 30-foot wireless range. Snap-in Transceiver Nano Transceiver snaps into the bottom of the mouse. Comfort for Either Hand Use your mouse with your left or right hand. Device Stage Quickly and easily access common tasks, including product information, registration, settings. General Device Type Mouse Wireless Receiver USB wireless receiver Form Factor External Width 10.2 cm Depth 3.5 cm Height 15.9 cm Colour Black Input Device Connectivity Technology Wireless Interface 2.4 GHz Features Touch-sensitive scroll Expansion / Connectivity Interfaces 1 x USB - 4 PIN USB Type A Miscellaneous Compatible with Windows 7 "Compatible with Windows 7" software and devices carry Microsoft?s assurance that these products have passed tests for compatibility and reliability with 32-bit and 64-bit Windows 7. Software / System Requirements OS Required Microsoft Windows Vista / XP / 7 Manufacturer Warranty Service & Support 3 years warranty Service & Support Details Limited warranty - 3 years