ValueRays Heated Mouse, Warm Mouse, Black Heated Mouse, Mouse Hand Warmer, Warming Mouse, Hand Warmer, Warmer Mouse, Hot Mouse, Heat Mouse, Heated Computer Mouse, Warm Computer Mouse, Infrared Heater, ValueRays Executive Series, Black CEO Heated Mouse Manufactured by: Free Shipping-ValueRays Infrared Heated Computer Mouse - Plug & Play Uses a low voltage (5V) and is safe for people and the computer Warms the hand with a comfortable 99-104 degrees Farhenheit temperature On/Off Heat Level Switch On Cord