Intelligent Constant Temperature: Smart baby bottle warmer adopts USB power supply to keep warm. It is convenient and portable. It has 4-layer preservation material design, so you can be reliable to use. Please note: This product cannot be heated, only warm baby bottles. Compatible with: Portable Bottle Warmer is compatible with the USB interface of most 5V 2A power supplies, such as 5V 2A mobile power supplies, charging heads and car chargers. Easy Feeding: Baby Bottle Warmer can make the baby's night feeding easier, which easily solves the troubles of parents. Not just for milk Carry other drinks and snacks in this climate-controlled carrier. Bottle Warmer Temperature: Warmer Bag has 3 levels of temperature for adjustment. High, medium and low temperature are respectively 60, 50 and 40 3 levels. Note:The above temperature is the temperature of the heating plate. Under normal circumstances, mid-level can keep the milk at about 40. How to Use: Press the switch button for 3 seconds to turn on, convenient and fast. It can be adjusted according to the seasonal temperature. Suitable for all kinds of baby bottles. It can also keep food and drinks for a long time. Size: about 22*8cm/8.66*3.15in Color: Camouflage color Material: Premium PU Voltage: 5 V Packing List: Portable Milk Feeding Thermostat*1 USB Charging Cable*1 Note: This product cannot be heated, only warm baby bottles. Please allow slight tolerances in size due to manual measurement, and lighting in photography may result in difference in color than it is in real life.