Logitech Wireless Keyboard, 2.4GH, USB 2.0, Black Reliable wireless—wherever you use your keyboard. Small wonder Logitech Unifying receiver—the tiny, wireless receiver that stays in your laptop and lets you add devices as you need them. Just one touch You can do more, faster with eight hot keys for instant access to music, e-mail and more. Charged and ready With intelligent power management, you can go years without replacing the batteries. Advanced 2.4 GHz wireless So you can work or play in more places—like your comfy couch—the wireless connection virtually eliminates delays, dropouts and interference and gives you range of up to 10 meters (33 feet).