1. Experience deep recovery with dual light therapy. Enjoy the flexibility to switch between 660 nm and 850 nm red light to specifically relax your muscles and relieve pain. These two wavelengths penetrate deep into your skin and provide effective and soothing red light therapy. 2. Pain relief for the whole body. Thanks to 100 powerful LEDs, you can wrap the belt around different body areas such as the waist, neck, back, and knees. It relieves muscle pain, promotes healing, and increases blood circulationideal for daily recovery. 3. With userfriendly control, you can easily adjust intensity, pulse, modes, and timer to your needs. 4. Easy to use and easy to clean. The transparent TPU film allows for quick cleaning of the device. Plus, the sewnon storage bag keeps things tidy by providing space for small items and the power bank for on the go.