Feature:1. Material: The bottle insulation cap is made of oxford cloth and tin foil material, no odor, uniform and soft insulation, can be used by the baby with confidence.2. Adjustable: With 3 levels of temperature control, will not burn your hands, the green light indicates 40 C, blue light indicates 50 C, red light indicates 60 C.3. Easy to Use: The bottle insulation cap is small in size, light in weight and easy to carry. Whether it's feeding at night or going out, it reduces the burden for going out.4. Application: Suitable for most bottles with a capacity of less than 240ML, can put 2 bottles, can hold milk, drinks, juice, coffee, ensure you can drink hot drinks anytime, anywhere.5. Ideal Gift: Ideal gifts to friends, colleagues, relatives, and family members with newborns, so that the baby can drink milk at the right temperature. Easy to use and safe.Specification:Item Type: Baby Bottle Warmer Bag.Material: Oxford cloth + tin foilVoltage: 5VPackage List:1 xBaby Bottle Warmer Bag1 x USB Cable