【Efficient Warming】: The portable bottle warmer is designed to heat up your baby's bottle in just 20 minutes and can stay warm for a generous 4 hours on a full charge. With 4-5 heat ups per charge, it provides reliable warming for your baby's milk.<br>【360°Surround Warming & Nightlight】: This baby milk warmer is made of ABS material, 360°surround warming can keep your baby's milk at an ideal temperature when need. You can preset the temperature before sleep, it will keep warm while charging to ensure that you can sooth your hunger and crying baby<br>【Fits Most Bottles】: The bottle warmer is designed to expand up to 3.25" in diameter, making it suitable for holding bottles of various sizes. Note: Warming time frame depends on the starting temperature of the milk. Frozen milk or ice cold milk may take up to an hour to warm in the warmer.<br>【6-Gear Precise Temp Control】: The travel bottle warmer provides 6 gear temperature for you to choose, including body temperature (37C), warm (40C), and very warm (45C), with additional options at 42C, 40C, and 55C. 6000mAh rechargeable battery is included.<br>【Portable and Travel Friendly】: Ideal for on-the-go parents, the bottle warmer can easily fit into diaper bags, strollers, backpacks, and other on-the-go accessories, allowing you to prepare a bottle for your baby whenever they need it.