Feature: 1. Perfect Temperature: Bottle warmer cover with constant temperature and heat preservation function to avoid too high or too low temperature of milk, provide appropriate milk temperature. 2. Charging and Using: Milk bottle warmer cover adopted USB interface design, bring you much convenient for plug and use, which is also easy to carry and use at outdoors or traveling. 3. Adjust Size: Portable bottle warmer cover adopted hook and loop fastener design for easily adjust the size, suitable for all brands and sizes of baby bottles, which is easy to use. 4. Quickly Heating: Milk bottle warmer cover can provide fast heating, save time and electricity, to meet the needs of the baby milk drinking, allow your baby can drink warm milk both at home or outdoors. 5. Excellent Oxford Cloth: Portable bottle warmer cover made of oxford cloth, firm and sturdy, with a small size for easy to carry, which can be used for a long time without broken. Specification: Item Type: Milk Bottle Warmer Cover Material: Oxford Cloth. Package List: 1 x Milk Bottle Warmer Cover1 x USB Cable1 x Storage Bag