? [Package List & Warranty]: Belt*1; control panel*1; power cord*1; usb cable*1; user manual*1; exquisite gift box*1! 7x24 hours corresponding to any of your needs, if there is any problem, please contact us, we will provide you including free return, replacement and other services, to give you more protection. ? [Wide Range of Use]: You can enjoy red light ther.apy for a fraction of the cost, so this is an economical way to relie-ve pa-in at home. This wearable wrap can be used on the back, chest, arms, shoulders, knees, various body parts. Meanwhile, It is a great gift choice for girlfriend, parents, friends. ? [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!. ? [Multi-Function]: This therapy 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. ? [Working Principle]: 660nm Red light can reach deep layers of the skin so that it stim-ulates cellular repair and increases circulation. 850nm near-Infrared light is Invisible to the naked eye, but it can pen-etrate and cause ther-mal effects to increase tissue temperature, promote blo-od circul-ation, enhance m-etab-olism, improve c-ell vitality.