ValueRays Heated Mouse, White Warm Mouse, Warm Computer Mouse, Heated Computer Mouse, Ergonomic Warm Mouse, Optical Heated Mouse, USB Hand Warmer Mouse, Assistive Technology, USB Optical Mouse, Computer Mouse, Infrared Heat Carbon fiber heating element for INFRARED HEAT Warms the hand with a comfortable 99-104 degrees Farhenheit temperature Uses a low voltage (5V) and is safe for people and the computer Improved On/Off Switch conveniently located on the USB cord USB cord approximately 56" long