Wireless 2.4 GHz / Folds for portability / Scroll wheel / Snap-in transceiver / Ergonomic design / Laser technology # The revolutionary design of the Arc Mouse combines the comfort of a Desktop mouse and the portability of a Notebook mouse. Arc Mouse folds to 60% of its fully expanded size when you're on the go. Two Color options to match your Personal style. 2.4 GHz - 30 ft. Wireless Range - The 2.4 GHz wireless USB micro-transceiver connects wirelessly right out of the box with virtually no interference and has up to a 30 foot wireless range # Folds For Portability - Mouse folds to 60% of its fully expanded size using the strong metal hinge. Folding the mouse closed automatically turns it off. # Scroll Wheel - Save time and effort with the scroll wheel navigate documents and Web pages without using the on-screen scroll bar. # Battery Status Indicator - You won't get caught with a dead battery the Battery Status LED Indicator glows red when the battery is running low. # Snap-in Transceiver - Micro-Transceiver snaps into the bottom of the mouse. # One-touch access to Windows Flip 3D - Allows you to flip through open windows in a stack and quickly Switch between applications for added productivity. # Customizable Buttons - Get quick access to the media, programs, and files you use most often with customizable buttons. # Comfort for Either Hand - Use your mouse with your left or right hand ambidextrous design makes it comfortable either way. # Ergonomic Design - Point and click in comfort ergonomic design helps you work longer without discomfort. # Designed for Notebook PCS - Compact and comfortable, our handy notebook and laptop products are designed for convenience and mobility. # Snap-in Receiver - Plug in the snap-in receiver when you're ready to work, then snap it into your mouse when you travel, preserving battery life. # Laser Technology - Microsoft Laser Mouse products are more precise, more responsive, and deliver smoother tracking. # <6+ Months Battery Life - Work with less interruption with longer battery life. # Compatible Computer/Operating System: Windows Vista/Windows XP or Mac OS X v10.2-10.5