Review on 🚘 Premium 2-in-1 Car Cup Warmer Cooler: The Ideal Holiday Seasonal Present with Smart Car Cup Mug Holder in Black and Gold – Perfect for Commuters, Travelers, Road Trippers, and Recreation by Robin Detwiler

I put a cup of lukewarm coffee in the warmer hoping it would keep it warm or make it hotter to drink. After 30 minutes the coffee got cooler but not hot. Also not suitable drink holder Hyundai, Sonada. When the car stopped, the heating pad moved forward and my coffee poured out. This is because it is impossible to fully fill the cup holder with water. I put a bottle of cold water in the machine, press the cold button. The water bottle got warm. Cooling water temperature cannot be maintained. I sent it back after several days of testing. upset.