Usb powered: No need to worry about finding a power outlet, the travel bottle warmer is powered by USB Type-c, making it easy to use at home, in the car, or even on family trips. materials: The portable bottle warmer is made of leather, aluminium foil and fleece, which is stain-resistant, wipe clean and easy to clean. The compact and lightweight design with carry handle makes it easy to carry in a baby bag or luggage. Widely used: Baby bottle heater is made of adhesive design, which doesn't hurt your hands and can be adjusted freely in size, which can fit more than 95% bottles on the market, and can be used for car travelling, hot beverages, warming your hands in the office, and warming up your womb during your menstrual period. Quick heating: The portable bottle warmer is rated at 18w, ensuring that your baby's bottle is heated quickly and efficiently. Say goodbye to long waiting times, especially when your little one is craving a meal. Adjustable temperature: The portable baby bottle warmer has a temperature range of 35℃-55℃ with 20 adjustable settings for more accurate temperature; with memory function, the temperature does not need to be reset and automatically remembers the last temperature.