As seen on TV. Thank you for shopping ValueRays. The ValueRays heated mouse is the original warming mouse with enhanced functions and heat. Enjoy deep heating infrared warmth with improved construction, a smooth finish, easy improved on/off switch located on the bottom of the mouse, an improved scroll wheel, a longer cord, and when used with other ValueRays products improved warmth for the mouse hand. The ValueRays warm mouse is made using a carbon fiber to generate a continuous flow of deep penetrating infrared heat to the palm of the computer user's mouse hand. For best and lasting results with your ValueRays heated mouse, plug the USB cable into a USB port located on the back of the computer. The front USB connections are not as strong or powerful as the back USB ports on older computer models. The deep heating infrared heated mouse technology helps soothe aches and pains of the mouse hand by delivering infrared heat deep through the skin layers into the muscle tissue. The infrared heated mouse helps relieve the stress and tension brought on by conditions like arthritis, Raynaud’s, tendonitis, carpal tunnel, and many more conditions affecting blood circulation. ValueRays warm mouse features: a comfortable 99-104 degrees Fahrenheit - uses a low voltage (5v) safe for people and computers - turn heated mouse off and unplug it when not in use - requires no drivers/software - plug and play.