Product details:

The Adesso ACK-5010UB Mini Keyboard has a built-in trackball for mouse emulation. You can easily connect it to your PC through the USB port since it supports USB connectivity. This USB-wired keyboard features 89 keys with an embedded numeric keypad. There are 12 dedicated function keys that make working with your computer simple and easy. The Adesso mini keyboard works well with most versions of Windows, including Vista, 7, XP and lower platforms.