2in1 Car Cup Cooler and Warmer Enjoy your favorite beverages at the temperature wherever you go. This versatile car cup holder combines both cooling and heating capabilities, making it ideal for yearround use. Key Features: Dual Function: Rapid cooling down to 3°C or warming up to 65°C within minutes, allowing you to keep drinks refreshingly cold or comfortably hot. Wide Compatibility: Suitable for a variety of container materials including aluminum, iron, plastic, and glass. For irregular bottle bottoms such as mineral water bottles, simply add 2 cm of water in the cup to improve thermal or cooling conductivity. Durable Construction: Made with ABS and PVC materials for longlasting performance and a clean, minimal design. Flexible Power Options: Operates with DC12V vehiclemounted power supply or household adapter for convenience in cars, offices, or at home. Energy Efficient: Fast temperature change with low power consumption, compact size, and no pollution. Practical Applications: On daily commutes, keep morning coffee warm without using bulky thermos bottles. During long trips, enjoy cold soft drinks or chilled water without relying on ice or coolers. At work or outdoors, quickly heat tea or keep sports drinks cool for maximum refreshment. This compact, performance cooler and warmer is a musthave for anyone who values having their drinks at the right temperature at all times.