Foot bath massager uses ptc heating semiconductor - speed heating, maintaining a constant temperature, and secure multi-insulation protection. Using water cycle heating makes heating more uniform and constant water temperature. The massager can produce oxygen gas waves, generate water resonance. Surfing function stimulates the foot acupoints, improves foot microcirculation, and produces soft massage. Multi group rolling massage therapy of this foot bath massager can improve microcirculation, promote blood circulation, relieve fatigue, remove cold and help you sleep better. Ideal for athletes & people who longtime stand. Use quality ptc heating semiconductor with safe and secure multi-insulation protection and double overheating protection. Speedly heating in minutes then maintaining a constant temperature. Heat can not only enhance therapeutic effect, but also help with swelling, throbbing, redness. Adding infrared red light to sterilize your feet. Package includes 1 x electric foot massager.