ValueRays&reg; Warm Mouse, Heated Mouse, Warm Computer Mouse, Heated Computer Mouse, Ergonomic Warm Mouse, Optical Heated Mouse, USB Hand Warmer Mouse, Ergonomic Mouse, Assistive Technology, USB Optical Mouse, Computer Mouse, Infrared Heat AS SEEN ON TV. Soothing Deep Penetrating Infrared Heat for Left or Right Handed Users 800 DPI Scrolling USB Optical Mouse. Easy Plug & Play Install - No Drivers Needed! High/Low - On/Off Heat Level Inline Switch On a USB Cord total length approximately 50-55" Long Soothes, Relaxes, Enhances Blood Circulation by Warming a Cold Mouse Hand and providing Infrared Heat to the Palm of the Mouse Hand