Keep Warm ModeDuring the heating process, the surfaces of our Bottle Warmer will not overheat, when the temperature reaches 42, the temperature will automatically enter the keep warm mode, and support 24 hours of continuous keep warm. 3 Kinds Of Temperature Can Be AdjustedPress and hold the power button of our Smart Bottle Warmer for 3 seconds to start the hot bottle, there are three colors to adjust the temperature of your milk: green, blue, and red. Easy To UseThe milk bottle insulation cover is small in size, light in weight, and easy to carry. Whether it is night feeding or going out, it can reduce stress for mothers, and heat the milk sleeve quickly and easily. Perfect Gift The bottle thermostat can be given as a gift to friends, colleagues, relatives, family members who have a newborn baby, so the baby can drink milk at the right temperature.it is easy and safe to use. Wide ApplicationOur Portable Bottle Warmer is suitable for many occasions. It can be used as a bottle warmer for travel, train, and car, making our life more convenient, we don't need to worry about the baby drinking milk. Specification: Size: about 29x13cm (11.4x5.1 in) Material: PU leather + heating membrane+ lining Packing List: Baby Bottle Bag x 1 Data Cable x 1 Manual x 1