PLEASE NOTE: The product comes with a Christmas card so you can give the product as a gift to your friends or family at Christmas. 5 temperature settings: this portable bottle warmer has 5 temperature settings. 38c, 40C, 42c, 46c, 52c, adjustable with + / - button. The temperature is displayed on the LCD screen. (We recommend using only lukewarm water to keep the bottle warm for 24 hours, as it heats up very slowly with cold water or cold milk). Ease of use: our isolation bags feature a Velcro pocket and a long USB cable. Removable, washable lining and fabric cover for greater cleanliness and hygiene. Multi-layer safety texture, locking temperature, long-term warmth. Easy to clean: the portable travel heater is made of pu material, so you can easily clean the heater with a damp cloth. Special note: don't forget to use a 2A fast-charging adapter or a rechargeable battery, otherwise heating will be slow. Intelligent temperature control: use a 5V adapter for rapid heating, then maintain a constant temperature. Temperature can be set, easy to use. Direct heating is not recommended, but can be used to heat the bottle. Multiple application scenarios: the outdoor bottle warmer is suitable for travel, trains, planes or cars, indoors or out. Fits most baby bottles without worrying about size differences.