For Cold & Warm Drinks Works with cans, coffee cups, glass cups, baby bottles, tea, soda, and more. Fast Cooling & Heating Semiconductor temperature control helps keep your drink cool or warm on the go. Integrated Aluminum Inner Liner Helps deliver even temperature transfer for consistent cooling and heating performance. LED Display + One-Touch Control Check the temperature at a glance and switch between modes with one simple button. Fits Most Car Cup Holders Designed to fit most standard vehicle cup holders, making it easy to place, use, and take with you. Plug & Play 12V Power Connect to your vehicle’s 12V power outlet and start using it without complicated setup.