The GBruno Kids' 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. The digital display shows real-time temperature, making it simple to monitor and operate. This warmer is compatible with most straight baby bottles up to 6.5 centimeters in diameter, accommodating a wide variety of bottle types. Designed with premium thermal insulation, this bottle warmer maintains the desired temperature for up to five hours, making it perfect for travel, errands, or outings. The built-in 6000mAh rechargeable battery provides convenient cordless operation and can be easily charged via USB. The compact and lightweight design fits comfortably in diaper bags or strollers. The warmer heats milk to the preset temperature in approximately 30 minutes and features color-coded indicators for heating and charging status. Constructed with a durable ABS shell and PU insulation sleeve, this bottle warmer combines functionality with portability for busy parents on the go.