12v car travel mug 1.High quality,CE certificate 2.Low price,good service 3.Low MOQ, 4.Direct factory 2012 Hot Sell Electric hot plastic 12v car travel mug Description: Material:Capacity colour ABS500ml custom (1) Working principle: This new product is installed the refrigeration system between the inner liner and radiator,and the refrigeration film is conjointed with toggle switch.So,the ...