USB Bottle Warmer Bag Portable Constant Temperature USB Milk Heat Keeper for Home Car

Feature: 1. USB POWER SUPPLY: Milk bottle warmer uses USB 5V 2A power supply, suitable for USB charger, car USB port, mobile power supply. 2. APPLICABLE BOTTLES: USB milk warmer bag for 5‑8cm 2‑3.1in Diameter bottles, plastic, silicone, glass, tin cans and other materials are supported. 3. CONSTANT TEMPERATURE: Only need to provide power, 24 hours of heat preservation to keep the original temperature constant for a long time. 4. SAFE AND FLEXIBLE: USB milk bottle warmer has a cord length of 1.2m 3.9ft, which is enough for distance use. Convenient and safe to heat the bottle during car travel. 5. CONVENIENT: USB bottle warmer bag can make night feeding easier, reduce waiting time, let parents have enough sleep. Specification: Item Type: USB Bottle Warmer Bag Material: Cotton. Package List: 1 x USB Bottle Warmer Bag Note: 1. USB power interface output should be 5V 2A, if power supply current is small may cause slow heating or no heating, please use USB 5V 2A standard charger to use.2. This product is just a low voltage USB heater. It heats slowly. This product does not heat bottles quickly. It is suitable for long term wrapping to keep bottle warm after feeding or when you are not in a hurry to feed your baby.