Functions and Features 1.Qnique and advanced technology The heat originate from high-capacity polymer battery,through high-technical heating materials, it could give out heat powerfully and lastly. 2.Energy-saving,heating time-lasting,low expense Adopting high-capacity polymer battery which is safe and reliable,matching the high-technical heating materials so as to save the energy and last the heating time for eight hours. 3.Adopting the infrared ray heating technology The heating parts generates powerful infrared ray and have massage on your feet when heating to speed up the blood circulation around the body. 4.Absolutely heating safely The working voltage is 3.7v,and it is moisture proof and corrosion proof in order to guarantee customer''s safety. 5.easy to operate This product has a charging electricity socket and a switch.you should only turn on the switch when you need the heating function.Otherwise,you should turn off the switch so as to save electricity. 6.Top quality,fashionable style The style of our product is designed by famous Italy designers,adopting excellent quality raw material,applying top grade Italy imported advanced production equipments and workmanship to make sure to guarantee the quality of each item. 7.Strictly technical standard Our heating products will be taken out the factory only after examined by the relevant departments according to various kinds of technical standard. Components 1.Control pack including the socket of charging and discharging,indicator light of power supply and switch 2.Shoes body 3.Battery 4.Charger 5.Heating sock lining