Kensington® KP400 Switchable Keyboard, 17 1/2 x 4 9/10 x 7/10, Black

Convenient switchable keyboard allows you to change quickly between wired and Bluetooth® connectivity, making it easy to work with a laptop, a tablet, or even a smartphone. The keyboard is full-sized and includes a numeric keypad, providing a professional typing experience. The keyboard can be powered using either a detachable wired connection through a USB port on your laptop, or with batteries when it’s in Bluetooth® mode. Installation is simple and easy, so you can start typing in no time at all. Compatible with Windows®. Uses Bluetooth® 3.0.