Logitech M570 2.4G Wireless Optical Trackball Ergonomic Mouse

Logitech Unifying is a Tiny Wireless receiver that can Stay connected to the laptop computer and allows you to connect compatible devices when needed. The Freedom and convenience of a wireless device with the reliability of cable: One with Rapid Data Transmission without delays or interruptions. For forward and backward easily by Web pages and Documents. The trackball M570 has an adjustable laser sensor extends the possibilities of Cursor Speed and offers perfect control. The change from one document to another or browsing your favorite web sites is the most simple, forward and rewind Buttons. Customize the buttons of the trackball to expedite actions to perform.