Portable: The Bottle warmer is compact in size and light in weight, making it easy to store and carry. It is suitable for travel, camping, picnics and home use. Adjustable: Breast milk warmer, the temperature can be adjusted from 35 to 55 degree, and 20 level adjustable, Suitable for bottles with diameter 55-80mm. Heating and Insulation: Bottle heater bag, four layer insulation structure, composed of PU leather layer, insulation aluminum film layer, velet cloth. USB Charging: The food heater can be connected to adapters, portable power supplies and other devices with USB ports, making it easy to carry and use. Material: The bottle warmer is made of aluminum film layer, which is easy to clean and great. Size Chart: 14cmx30cm/5.51inchx11.81inch Package Includes: 1Milk Bottle Warmer with cable Note: 1.This is not infant toy, please take away from children to avoid eating. 2.Please allow slightly errors due to manual measurement and different monitors.