2.4G Wireless Trackball Keyboard

Keyboard : 
      *Keyboard size:385 mm * 178 mm * 50 mm
      *Receive size:78mm * 21.5mm * 10mm
      *2.4GHz with 8 channels.
      * Working Range: 10 meters.
      *4 AA batteries, approx. 3 months battery life (please only use alkali batteries)
      *Compatible with Windows 95/ 98/ Me/ NT/ 2000 and Windows XP.
      *Energy saving management.
      *10 million key switch life.
      *Number of keys: 88/89 and 12 Internet/Multimedia Hot Keys
Trackball :
       * Optical trackball
       * 800 DPI
       * 2 Mouse Buttons
       * Scroll Wheel

Features:
  1. Radio Wireless mini keyboard is one of the best computer input devices in the market today.
     It combines the convenience of radio frequency wireless and the trackball with two sets of mouse
     keys and scroll wheel. 
  2.As no cables connected to the keyboard, you can put it away to save space when you finish using it.
     this product is ergonomically designed allowing for comfortable use on table or lap.