【Pain Relief】: 650nm Red Light could speed up the met-abolic rea-ction of ce-lls, reducing infla-mmation and speeding hea-ling. 850nm Near Infrared light has a particularly strong ability to could penetrate deeper into the tis-sue, or-gans, and jo-ints, to promote blo-od circul-ation. Safe and reliable no side effects..【Doctor-Recommended】: Many doctors recommend his customer and athletes to use this product, and it has achieved good results. This device has obtained the international certification. Now you could relieve painful joints and muscles and improve physical condition at home for a fraction of the cost..【Multi-Function】: This ther-apy pad has 105 pcs leds, 63 red lights, 42 near infrared lights. And there are 5 brightness adjust levels( L0-L4), the more brighter the more hotter and also has time setting function(5/10/15/20/25/30mins). Belt Size: 51.1*7 inch, long enough for most of people's needs..【Easy to Carry】: The infrared light th-erapy device is equipped with 2 power supply modes. Wide voltage AC 100-240V plug and the infrared light wrap also can be connected to Power Bank(Not included), usb cable is more suitable for 5V power bank, allowing you to enjoy the relaxation anytime, anywhere! You can turn it on while exercising or driving!.【Wide Application】: This red light device can wrap your whole body including head, neck, back, shoulders, arms, knees, hands, feet to help you improve your physical condition, accelerate postoperative wound recovery, relieve soreness, Improve sleep and enhance body resistance.