This red light therapy belt is designed for anyone seeking pain relief recovery and wellness at home. Using 660nm red light and 850nm near infrared light it supports muscle relaxation joint comfort and targeted therapy for the back hips shoulders and belly area. The adjustable portable design allows hands free use anytime helping you feel better without leaving home. | Lifepro | | Red Light Therapy Belt with 660nm and 850nm Infrared for Body Pain Relief and Wellness | Purple | Best Buy