Keep your baby's milk or water warm during travel with this convenient USB Milk Water Warmer Travel Stroller Insulated Bag Baby Nursing Bottle Heater. Designed to fit most baby bottle sizes, this bottle warmer is perfect for on-the-go parents who need to keep their baby's drinks at a comfortable temperature. With its insulated design, this warmer keeps the contents warm for longer periods of time. Its compact size makes it easy to fit into a stroller or diaper bag, while its USB compatibility allows for easy charging on the go. Whether you're running errands or taking a long road trip, this bottle warmer is the perfect accessory for any parent.