SpecificationsMaterial: OK cloth&Neoprene &VelcroHeating Element:1 panelTemperature:40°C to 60°CLithium polymer battery:Voltage: DC3.7VCapacity: 2600mAhCharger:Input Voltage: AC100-240V 50/60HzCharging voltage: DC4.2VCharging current: 500mAOverviewThe ankle is one of the most abused parts of the body,Website:http://www.centurybalance.com, as it has to support the body's weight and move fluidly at the same time which makes it prone to simple sprains and painful ligament injuries. No matter the source of your pain, our Heat Therapy Ankle Wrap can help to relieve your chronic aches and discomfort. If your ankle isn’t in need of pain relief, this wrap is perfect to keeping your ankle and feet muscles loose to stay warmed up, even when not being active. 1.For patients that are suffering from stiff muscles and various chronic pains. 2.For people love outdoors sports in cold times.3.For sportsman that need to recover from fatigue and tiredness.4.For weak or elderly persons who are afraid of cold in winter time.5.For women and children who is sensitive to cold.6.For office clerks who always sit still and need sports.Payment methods:Bank Transfer, West Union, Escrow, Visa, Paypal, L/C.(please contact us if there is no payment method you want above.)Shipping ways:China Post Air Mail, Fast Express - DHL, EMS, UPS, FEDEX, Air Way & Sea way.We will choose the fast and reliable way base on your actual condition.Items will be shipped within 2-5 workdays after payment received.By China Post Air Mail: 7-21 daysBy Fast Express (DHL, FedEx, EMS): 3-5 workdays to most of countriesBy Air: 3-5 days to your local airportBy Sea: 25-30 days to your local sea port (Cheap but longer time needed)Delivery Time: About 2-3 weeksAfter-Sale Service:If our products cannot meet your requirement specifications.Please contact us for improve and reproduce.All e-mail will be reply within 12 hours.We strive to give you the best services.