Soothing Warm Elbow Wrap: This heated elbow brace provides ultra comfy hot therapy for sprain; strain; rolled elbow; arthritis; or a sporting injury; effectively speeding up recovery and preventing further injury. Also can help to promote blood circulation; relax tired muscle.Easy to use 3 Heating Levels Adjustable: Long press the button for 3 seconds to turn it on / off. Each short press will cycle through the temperature setting: 56/ 132 (green light) - 63/ 145 (blue light) - 70/ 158 (red light). You can adjust that of this soft elbow brace by the button; easy to control.Soft Material Safe Operation: Made of skin-friendly SBR material which is soft breathable and elastic; anti-slip silicone strip inside the sleeves; ensuring your sleeve stays in place. 5V low voltage for safe operation and low consumption.USB Powered: This heated elbow brace is an ideal companion for working; studying or traveling. Just simply plug the USB cord to power bank (not included); PC or USB adapter (5V 1A); You can enjoy a therapy warmth to relieve your pain in the elbow no matter you are in the office or on the airplane.Great For This Winter: Customizable size by elastic material and velco closure type; one size fits most people. Can also be used on calf; abdomen; arms to relieve muscle soreness and cramps. A good gift for Tendonitis; Arthritis; Elders; Sports-lover; or people who is extremely fear of cold.