Are you worried that your baby's cold milk is not good for the stomach? Now we can provide you with a bottle heated cover, so that your baby can drink warm milk both at home, in outdoors or on the go. Features: Warms baby milk to perfect temperature. Small and compact design for easy carry and storage. About 40 °C circulating constant temperature heating for efficient maintenance of nutritional milk. The hook and loop on the cover helps to fix the bottle securely and firmly. Suitable for many sizes of milk bottle. The zipper closure is designed for access to the inner insert and you can wash the removable cover while taking out the heating element. Perfect solution for parents to conveniently, safely and easily warm baby bottle while in the car traveling. Compatible with many kinds of 5V 2A USB devices such as power bank, laptop, charging adapter, car charger, etc. Specification: Condition: 100% Brand New Material: Cotton Type: Letters, Fox, Monkey, Heart, Mushroom(optional) Open Size: Approx. 28*13cm/11.02*5.12in Weight: Approx.60g/2.1oz Package List: 1 * Baby Bottle Warmer Cover Note: It will take half an hour to warm your normal temperature milk while it will spend one hour for heating milk taking from refrigerator. The milk heating or warming time will be different because of different material of bottles. 1、Warms baby milk to perfect temperature. Small and compact design for easy carry and storage 2、About 40 °C circulating constant temperature heating for efficient maintenance of nutritional milk 3、The hook and loop on the cover helps to fix the bottle securely and firmly. Suitable for many sizes of milk bottle 4、Perfect solution for parents to conveniently, safely and easily warm baby bottle while in the car traveling 5、Compatible with many kinds of 5V 2A USB devices such as power bank, laptop, charging adapter, car charger, etc