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 (5V1A), 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 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.