BeWell™ Plush USB Electric Heating Pad is adapted to any 5V2A USB power interface as a power source and has a 10W power rating. Pad has a terry and super-conductive fiber filling and is 16.9"W x 12.4"H. Has three temperature levels/settings. Turn off the device when not in use and store in cool dry place using the clear PVC zippered bag included for storage. USB cable and instruction manual included.