The TheraTherm Digital Moist Heating Pad provides temporary relief from pain associated with muscle spasm and inflammation. Safe and Easy to use, TheraTherm Heating Pads unlike all other heating pad products on the market have a digital hand control for treatment temperature, treatment time and on/off. Standard Size 14" X 27"Theratherm Digital Moist Heating Pad Features Draws moisture from the humidity in the air to provide effective deep moist heat .Easy to use Digital hand control allows user to program and monitor heating pad temperature and treatment time with the touch of a button �Competitive units including Thermophore, require the operator to make continual contact with a single-loaded switch to generate and maintain heat from the pad �Theratherm allows user to relax and enjoy heating pad therapy without the hassle of clenching a hand held switch .Lockout mode protects against inconsistent setting changes throughout heating pad treatment therapeutic Heating Pad treatment temperature is between 88 and 166 degrees .Treatment time is from 1 to 30 minutes .Specially designed 100% cotton flannel heating pad cover