Verbatim Mercury Wireless Notebook Laser Mouse with Nano Receiver 97264 (Ruby and White) Unique Design: Glossy Mercury finish and a unique see-through side gives a view of the scroll wheel Nano Receiver & Nano Slide: Small enough to plug in once and leave connected, includes a storage place to slide nano receiver into base Wireless: Plug in nano receiver and go wireless, 2.4GHz reliability and performance 1600 DPI Sensor: The high-resolution laser sensor offers quick and precise movement on almost any surface Power Management: Includes 3 sleep modes for improved battery life