Cables4PC Mini USB Wireless RF Optical Mouse w/Receiver Storage Mini Wireless Optical Mouse provides a great radio frequency(RF) wireless input solution for the mobile professional. Take it on the road easily, and use it with optical precision on virtually any surface--anywhere you use your laptop. Optical technology allows the Mini Wireless Optical Mouse to track every motion with digital accuracy. It also moves and stows easily, and does away with the need for cleaning and maintenance required by any ordinary mouse Mini Size (9cm x 5cm) for Mobile Purpose:It's portable and easy to store, excellent choice for your notebook Precise Optical Technology: With 800 dpi high resolution, the motion can be perfectly detected and moved smoothly on most surfaces, including wood, plastic, paint, etc. Wireless Precision Tracking and RF operation sy Plug-and-play setup and operation(No driver is needed.) Compact Design smaller, lighter, ideal for mobile users Automatically powers OFF when the wireless receiver is stored Manual Power ON/OFF when pressing the left mouse button, right mouse button and scroll wheel simultaneously Receiver Eject Button, with one touch of the release button, you can eject the wireless receiver stored inside the mouse for simple connectivity