5-LEVEL ADJUSTABLE TEMPERATUREThis portable bottle warmer has 5 levels temperature can be adjusted, the temperature is displayed on the LCD screen. You can adjust the required level you want according to the seasonal temperature, 38C/40C/42C/46C/52C(100.4F/104F/107.6F/114.8F/125.6F) can be set at will to keep the bottle warm and prevents it from getting cold. High Quality MaterialThe baby bottle warmer made from high quality fiber cloth material, is strong, durable and waterproof. The bottom with silicone Non-slip design can hold the bottle and not be easily slipped off. 4 layer material design can keep the temperature in balance. The night light led display screen operation more relieved and safer.Perfectly comfort hunger and crying baby at night, give the family a perfect sleep! Universal Size, Fits Most BottlesThe maximum inner diameter of the Baby Bottle Warmer Bag is 3.14inch, suitable for all kinds of milk bottles on the market, including glass bottles, plastic bottles, milk cups, drink cups and so on. The bottle warmer bag can be used on travel, airplane, train and car to keep bottles warm, making our life more convenient. Portable USB ChargingYou only need to connect the data cable to any power bank, car USB, or laptop interface to heat the milk, USB charging makes the baby warmer more fast and convenient Baby Bottle WarmerNewborns can easily need to feed at night. Our baby bottle warmer has a thermostat that evenly heats the water in the bottle to a preset temperature and keeps it warm so baby can drink when he's hungry, and it's easy to make formula anytime. This bottle insulation bag is a great gift for any new mom. Ideal for shopping, travelling, picnics and other places with children. You can heat your child's milk anytime and anywhere.