This extra long wireless Red Light Therapy Wrap combines red light (660nm) and near-infrared (850nm) for targeted cellular healing and potential pain and inflammation reduction. This versatile, wireless, extra long, and flexible therapy wrap contains 450 LED light chips to provide convenient, comfortable light therapy for a larger and longer surface area. Feet, ankles, knees, hips, low back, neck, shoulder, elbow, wrist, and hands — get creative. Details: Flexible, durable, water-resistant neoprene pad with an adjustable strap Size: 31" x 6.3", useful for multiple body regions Weight: 0.3 lbs 75W wrap — 150 x 0.5W medical-grade LED lights 3 LED light chips per light — 450 total LED light chips for large, uniform light coverage Two wavelengths: 660nm red light and 850nm near-infrared in a 1:2 ratio — 2 NIR light chips, 1 red light chip 20-40 mW/cm2 maximum intensity at 0" — sun-like intensity, continuous wave, no pulsing Two levels of light brightness: 100% (default) or 50% Automatic 20-minute timer Li-polymer battery, 5000mAh, 3.7V — 3-4 uses per charge, 4+ hour charging time Input 100-240V (Universal), Output: 5V – 2A EMF: 0.0mG at 0" Light flicker less than 1%, easy on the eyes No Bluetooth, latex, or BPA FDA registered for pain relief and increased blood flow FCC, ROHS, CA Prop 65 compliant 1 Year Limited Warranty Inclusions: Red Light Therapy Wrap — Extra Long Adjustable velcro strap USB-C charging cord and adaptor User guide Care/Usage: Use once a day, 3-5 times per week. Do not exceed more than one use per day on any one body area. The wrap should feel comfortably warm. Reduce session time or reduce the light intensity to ensure a warm, comfortable session. If you have light sensitivity, light sensitive skin, or darker skin tone, more warmth may be felt with the use of red light therapy products. Start with the light sensitivity test (refer to user guide) before use. Place the wrap with direct skin contact over the area needing extra help, pain relief, blood flow, or reduced inflammation. The wrap can be used on any part of the body — head to toe. Care Instructions: Store the device at room temperature in a dry environment in its original packaging. Avoid overly bending, stretching, or crushing the device while it is stored or while traveling with it. Avoid storing the device folded, in a dusty environment, under direct sunlight, or in damp or humid conditions. Be nice to it. The device contains no serviceable parts. Clean the device with a damp cleaning cloth. Make sure to only clean the fabric portions of the wrap and elastic strap. Then let it air dry. Do not use any cleaning appliances on the devices as these may damage it. Do not clean the device while it is turned on, or charging.