Generic Baby Bottle Cooler Bag, ABS Milk Bottle Cooler Bag 18W Portable Baby Feeding Tool with USB Charging Insulated for Breast Milk

【ABS Mateiral】: The milk bottle cooler bag is made of ABS and PU materials, ensuring reliable use, convenience and durability for a long life.【Convenient Use】: Simply fill the milk bottle with cold water, place it inside the milk warmer, and then use the USB powered milk warmer for a warm breastfeed at any time.【Accurate Temperature Control】: The cooler bag maintains a constant temperature of 42 degrees Celsius once heated. With real-time monitoring and accurate temperature control, it offers safe and reliable heating for your baby's milk.【Effective Multi-Layer Design】: The thermal bottle's spring-loaded temperature control head accurately measures temperature, while its multi-layer structure s that the bottle maintains a constant temperature of approximately 42 degrees Celsius.【Adjustable Fit】: Thanks to the hook and loop function, the bottle cooler bag can be adjusted to fit different diameters and types of bottles, making it a versatile choice for all types of bottles.