ProHT Multimedia Wireless Keyboard (70128) 2.4GHz Desktop Keyboard for Windows 7 / 8 / XP / Vista, 32ft Working Distance, Black WIRELESS FREEDOM - Untethered connection for the keyboard up to 32ft away with convenient 2.4GHz USB dongle. 2 way fast digital RF. PERFORMANCE KEYS - Modern style keys within the full keyboard design provide access to the magic of Windows with designated function keys and simplified multimedia control. EXPANDED WIRELESS CONNECTIVITY - Connection free smart link. Comfortably control your computer with convenient access to Windows. BUILT-IN NUMBER PAD - Type numbers easily to pay bills and balance budgets. COMPATIBILITY - Compatible with most desktops and notebooks with XP, Windows Vista, Window 7, Windows 8 or Windows 10; USB port. No installation required. 100% lifetime warranty.