heating and cooling car cup 1,Multi-fuction cooling and heating any kind of drink. 2,Portable car cup cooling and heating stainless steel electrical car cup 1,Multi-fuction cooling and heating any kind of drink. 2,Portable whenever.wherever,drink what you want.3.No compressor NO freon,NO noise,long time use.environmentalFor Heating: it takes 30mins to heat up to 75-80°CFor-cooling: it takes 30 ...