This portable bottle warmer offers six adjustable heating levels ranging from 37°C to 55°C, allowing parents to select the ideal temperature for their baby's bottle and ensure safe, comfortable feeding. The warmer provides 360-degree rapid heating and maintains thermal retention for up to four to six hours, making it perfect for travel and on-the-go use. It runs up to 110 minutes on the highest temperature setting with the night light activated. Designed to fit most straight baby bottles with diameters up to 7.2 centimeters, this warmer features a soft night light bar that illuminates during late-night feedings, eliminating the need to fumble in the dark. The digital display shows real-time temperature readings for easy monitoring and operation. The ABS shell and PU insulation sleeve construction ensures durability and effective heat retention. This USB rechargeable bottle warmer includes two built-in 7.4V 3000mAh rechargeable batteries that fully charge in approximately two hours. The compact design measures 7 by 9 by 13.5 centimeters and weighs just 280 grams, making it convenient to pack in diaper bags or carry during errands. The warmer comes with a 101-centimeter charging cable and is suitable for home use or travel.