Keep your baby's bottle at the perfect temperature with the USB Milk Warmer Travel Stroller Insulated Bag Baby Nursing Bottle Heater Newborn Infant Portable Bottle Feeding Warmers. This smart device is designed to keep your little one's nutrition warm with its built-in USB powered heater. The stylish insulating travel bag also keeps the bottles safe while on the go! Whether you're at the office or on a road trip, your baby will have a nourishing meal when they need it.