Manhattan Numeric Wireless Keypad enhances any notebook computing experience, especially when inputting important numeric data. The full-size 18-key layout and membrane (full-travel) key-switch technology reduce typing noise, improve response and provide low-profile keystrokes for fast and accurate data entry. A handy backspace key allows swift corrections. Its USB Wireless Receiver connection, plug-and-play installation and ultra slim, lightweight construction make it easy to pack and travel.