PerfectStroke key system for the ultimate keyboard feel. Bluetooth wireless and Li-Ion powered. Stylishly sleek with its elegant charging base and backlit controls, the diNovo Edge makes a bold statement.<br /> <br /> An ideal partner for any high-end computer, the ultra-slim Logitech diNovo Edge delivers the ultimate in feel and response. The revolutionary TouchDisc with hyper-speed scrolling and pixel-perfect control makes trackpads obsolete. A slim recharging base doubles as a keyboard stand. Work longer thanks to the longer-lasting Li-Ion batteries, and more securely via Bluetooth wireless technology. Combine it with the world's most advanced mouse, the Logitech MX Revolution, for a premium desktop experience!