【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. 【Multi-Function】This therapy pad has 960 pcs leds. And there are 3 temperature adjust levels, the more brighter the more hotter and also has 20 minutes time setting function. Total pad length 170 cm/67inch, long enough for most of people's needs. 【Soft & Effective Red Light Therapy Mat For Full Body】Multi-function controllers, more flatter pad's beads and comfortable. This red light belt and infrared light belts wrap are beneficial to the whole body, including neck, back, waist, shoulder, hip, legs, arms, foot, etc. 【Safer & No Side Effects】The material of New Upgraded red light heating pad is soft fabric, more softer and comfortable. We recommend not to use it more than 30 minutes each time and 1-2 times per day. Whether you want to Repair Tissue, Resolve Inflammation, Relieve Joint & Back Pain or Improve Your Sleep, This red light therapy mat is the nice choice for you. 【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.