Heated Mouse – HeatedMouse.com – Heated USB Chair Warmer is an infrared heated seat cushion – a USB heated chair pad to help keep you warm while using the computer. It is a low, steady heat with a carbon fiber infrared heating element inside at the center of the chair pad. ValueRays® Chair Warmer measures 18 x 14 x 1 inch in size and provides a soothing low volume of infrared heat. It fits most standard sized chairs. The heated chair pad is available in gray with black trim.