Feature:1. PORTABLE: It allows you to eliminate worries about spills or overheating. This innovative device heats milk instantly without the need for water, making it a convenient solution for busy parents.2. QUICK HEATING CAPABILITIES: Designed to heat milk within 15 to 20 minutes, this warmer can maintain warmth for 4 to 5 hours when fully charged. Enjoy the ease of having your milk ready whenever you need it, without long waiting times.3. ACCURATE TEMPERATURE CONTROL: Unlike most milk bottle warmers, our device features a temperature sensor that accurately controls milk temperature. It keeps milk at a consistent 42C and automatically stops heating once the desired temperature is reached, ensuring nutrients are preserved effectively.4. WIDELY COMPATIBLE: This warmer accommodates a variety of bottle sizes and shapes with a diameter of 70mm, including standard, wide neck, and angled bottles.5. MORE DESIGNS: The bottle warmer includes an adjustable hook and loop handle made from artificial leather on the outside and advanced reflective material on the inside. Additionally, the built in night light provides extra convenience during low light conditions, making nighttime feedings easier.Specification:Item Type: Milk Bottle WarmerMaterial: PP, LeatherWeight: Approx. 391g / 13.8ozOutput Voltage: 7.4VPower: 18WBattery: Polymer Li Battery 8000mah (Built in)Applicable Diameter: 70mm / 2.8in.Package List:1 x Milk Bottle Warmer1 x Instruction Manual1 x USB CableNote:Please make sure that the bottom of the bottle fits into the spring of the temperature control head of the base, otherwise the thermostat will not be able to detect the temperature of the bottle, resulting in the bottle being too hot. Make sure the temperature is right before feeding. 250ml of milk takes approximately 10 minutes to heat from 30C to 38C. Not suitable for heating cold milk from the fridge, it can take up to an hour to warm up.