-Precise temperature control and real-time monitoring: the bottom of our wireless rechargeable milk warmer is equipped with a high-tech spring temperature control head to measure the temperature, ± 42°C constant warm milk, so your baby can enjoy a bottle of warm milk with a suitable temperature anytime and anywhere. -Power battery with large capacity: the wireless baby bottle warmer uses the high-end power battery on the market, which makes the heat of the bottle warmer more stable and permanently constant. The 5200 mAh large capacity power battery can be used continuously for 3 hours when fully charged, and can be used repeatedly 3 to 5 times, which is energy-saving and environmentally friendly. -High-quality materials and design: uses a high-quality heating film, a heat-retaining aluminum foil in pot quality, and other multiple heat insulation materials that make the baby warmer permanently and save more insulation energy. The bottle warmer has a Velcro fastener that is easy to carry and put on. It is suitable for different bottle diameters and bottle types, making it more flexible and versatile. -Easy e and carry: When using the baby bottle warmer, first pour cold boiled water into the bottle and then put the bottle to the automatic constant warmer. When heated to 42 degrees, the constant temperature light automatically lights up and keeps this temperature, so you don't have to worry about preparing milk late at night. -Wireless and portable, compact and concise, it is the best companion for travel.