Model HP710. Soothing therapy for pain relief. SmartHeat technology. Auto shut-off. Faster heat-up. More even heat. Moist heat - deep penetrating pain relief. 4 heat settings. Soft comfortable pad. Longer reach 9-foot cord. Softer plush cover. Washable. Full size 12 inch x 15 inch. Menstrual pain relief; Arthritis pain relief; Muscle ache relief; Moist Heat (Pad, aquifer, cover). Aquifer timed-release moisture. Machine washable cloth cover. Heat therapy relaxes muscles and relieves joint pain and soreness. By increasing blood flow to the injury area, heat therapy can help accelerate healing. Finally, heat can effectively warm and loosen stiff muscles before exercise. Aquifer timed-release moisture technology provides deeper heat penetration than dry heat alone. Moist heat is physician recommended. SmartHeat vs Standard: Optimal heat therapy requires consistent heat in the therapeutic range. Only Smart Heat uses state-of -the -art microchip technology to eliminate spikes and maintain a more comfortable, even heat. Smart Heat also has a bonus warmth setting for subtle, gentle warmth. UL Listed. 5 year warranty. Made in China.