Fast Heating: The heating pack has a capacity of 1.2 gal (6.8 L); Size: 10.2 x 6.3 x 6.5 inches (26 x 16 x 16.5 cm); fits most baby bottles. Fast constant heating, heat for 15-20 minutes, and can be heated up to 140°F (60°C), and maintain a constant temperatureTemperature Adjustment: There is a digital display on the surface of the heating pack, so you can display the temperature at 104°F (45°C), and can be set up to 144°F (60°C), and you can set the desired temperature by the + on to raise the temperature(Equipped with a USB cable) The heating pack comes with 2 USB cables, and the cable length is approximately 21.7 inches (55 cm). It is highly compatible with the USB port, mobile power supply, car charger and other 5V/2A power supplies. It is convenient for outdoor or indoor useIdeal for Travel: Compact and easy to store in your car, convenient to carry, this stylish and compact thermal baby bottle cover can be used in a variety of situations, such as traveling, homes, driving, and everyday life. The in-car bottle warmer is an outdoor necessity for moms, and always give your baby a comfortable mealNote: 1) Do not directly insert liquid. 2) If the heating pack does not heat up, please unplug the power supply; 3) If you want to shorten the heating time, please use 2A or a USB charger with a higher output; 4) It will warm up only when you turn on the side heat, but the temperature will not be displayed