[2 in 1 Car Cup Cooler]:Warming and Cooling functions. Cooling down to -3℃ and heating up to 65℃, your drink will be cooled or warmed up in minutes. .[Wide Compatibility]:For irregular bottle bottoms such as mineral water bottles, we recommend putting 2cm of water into the cup as a conductive medium when you use it. It is suitable for heating various materials such as aluminum, iron, plastic, glass, etc. .[ Materials]:The car cooling heating cup holder adopts ABS+PVC, simple design. It is suitable for use of DC-12V on-board power supply and home adapter. .[Low Power Consumption and ]:The cooling cup holder features fast cooling speed, high efficiency, low energy consumption, small size and no pollution. Whether you are traveling, working or outdoors, it is a must-have for those who enjoy cold drinks in summer or hot coffee in winter. .[Multiple Occasions]:Exquisite mini size with adapter. Perfect for road trips, parties, commuting, picnics, coffee lovers or ' milk warming. Great for chilled drinks like cola, beer, wine and cans. Always a refreshing drink in summer.