Winna Electronic Technology is an ISO 9001:2008 certified factory based in Guangdong with advanced production machinery and testing equipments, and above 500 production employees. We have over 20 years' experience in manufacturing electric heated products like heated insoles, heated gloves, heated socks, heated jacket and heated vest, etc.Our products are being exported to North America, South America, Northern Europe, Western and Eastern Europe, Asia, especially USA, Canada, Russia, Korea and Japan, etc. All our items are CE, RoHS, Intertek, GS marked and shipped in eco-friendly packaging. Contact us today!