Features: Electric shawl blue heating shoulders breathable punching large size regardless of left and right With 1.5M USB Android port charging cable, no battery, can be adjusted heating Four-point compression pad for more effective support and pain relief on the shoulder. Easy to operate, simple and comfortable to wear. High quality diving material, heating gasket, with 1.5M USB Android port charging cable Specification: Material: neoprene & fabric Size: S size: fits 31''-40'' in chest, 9''-16'' in arm circumference L size: fits 41''-51'' in chest, 9''-16'' in arm NOTE: The size of the shoulder strap is not very long. It is recommended to choose L size above 35" Product List: Heating Shoulder*1 1.5M USB charging cable*1 Instruction manual*1 Switch Mode: Red-highest temp (65? to 75?) Blue-medium temp (55? to 65?) Green-lowest temp (40? to 60?) Using a voltage other than 5V will cause it to not work or burn. See more

AFTER-SALES SERVICE: We always hope that customers can get the best shopping experience, if you have any questions when using, please contact us as soon as possible. PERSONAL PROTECTION: Four-corner compression for more tight-fitting protection. You will get more compact and more tight-fitting protection. ADJUSTABLE SHOULDER STRAPS: Made of lightweight, breathable neoprene; the fashion blue color shoulder brace is fully adjustable to fit most people's body size. WARM SHOULDER MUSCLES: Heating Pad Support Brace is suitable for periarthritis of shoulder, torn shoulder sleeve, sprain, tendonitis, paralysis, strain, stiffness, soreness, etc. RELAX SHOULDERS: Our heated shoulder strap can relieve pain, it can relax the shoulders and help recover faster.·.