... Electric heat insole, heated shoe insoleFeatures:1. Use the semiconductor heating chipset make your full sole heating ... be wash,soft and can be agley will not distortion3. Light and small, convenient to ... charging the battery for first time using5. Do not use aging when the battery spillage, bouffant, rust, ... have olfactory etc6. Do not put into water and fire, if not use for long time please charging ...