Bottle Warmers for All Bottles: 4mm widened Velcro, covering 50-80mm caliber, suitable for 99% of the feeding bottles on the market. The surface is made of PU waterproof material,gently wipe with a wet tissue to complete the cleaning work. Note that the bottle warmer should not be soaked in water for cleaning.<br>Perfect for Night Feedings: Use keep warm function to maintain the water temperature before going to bed for those late night feedings, making it easy to brew milk powder at any time. Its small size fits easily on a nightstand. The soft night light provides sufficient illumination for feeding without disturbing the baby's sleep.<br>Surround Evenly Warming: The bottle warmer adopts four sided heating and direct heat transfer at the bottom (no water needed), which heats up faster and more evenly. 37℃(min) to 55℃(max), you can set degree you need it, meets your different needs of water temperature for baby milk, drinking water, reheat, etc.<br>Rechargeable and Portable: No need to always connect to a power source, It can be used as as going out, traveling, etc. ducing waiting time and helping you soothe your baby quickly, we don’t need to worry about baby drinking milk.<br>4-in-1 Milk Warmer: It has multiple functions such as heating, warm milk, constant and warm water, with adjustable temperature ranging from 37°C to 55°C for precise temperature control. It can maintain the temperature of baby bottles and prevent them from becoming cold. Babies can drink milk while heating.