Material: Bottle insulation cover is made of high quality fiber cloth and heating piece material, no irritating odor, uniform insulation, soft, can be assured that the baby use. Adjustable: With intelligent 5-step temperature adjustment, 38, 42, 46, 50, 55 5-step precise temperature control, adaptable to a variety of process formula milk powder, can be adjusted to the right temperature at will. Easy To Use: The milk bottle insulation cover is small in size, light in weight, and easy to carry. Whether it is night feeding or going out, it can reduce stress for mothers, and heat the milk sleeve quickly and easily. Wide Application: The milk bottle insulation cover can hold soy milk, beverages, juices, coffee, water, milk while hiking, shopping, traveling, so you can drink hot beverages anytime, anywhere. Gift: The bottle thermostat can be given as a gift to friends, colleagues, relatives, family members who have a newborn baby, so the baby can drink milk at the right temperature.it is easy and safe to use.