Product 15 minutes, 30 minutes, 45 minutes timer functionRed light and infrared light are controlled together15 LED lamp beads, 9 660nm red lights. 6 850nm invisible infrared lightAdvanced environmental protection material, no peculiar smell, soft and skin-friendly, the stains on the surface of the product can be scrubbed with water after use.It is suitable for analgesia, hot compress therapy and massage for neck, arm, knee, leg, abdomen, shoulder and other parts.Functionsweight loss and Pain Relief-Affordable red infrared light therapy device can effectively relieve pain without causing harmful side effects.Relieve Joint and Muscle Pain:red light therapy device is suitable for back, neck, shoulders, arms, knees, hands,feet. At the same time, it can also help for muscle fatigue and soreness.Portable 660nm+850nm infrared red light double phototherapy - red light can reach the deep layers of the skin, stimulate cell repair, promote blood circulation, and make the complexion more vibrant and youthful. Infrared is invisible to the naked eye and has strong penetrating power. It produces a thermal effect, increases tissue temperature, promotes blood circulation, enhances metabolism, and improves cell viability and regeneration.