Features:1. Made of high-quality microfiber PU material, which is safe and non-toxic.2. The packaging is convenient and firm, not easy to fall off.3. Can be applied to a variety of materials, such as water cups, mineral water bottles, milk boxes and so on.4. Support power bank, USB, car charging.5. Intelligent temperature control design, convenient to use.6. 24-hour insulation when plug in, four-layer to lock temperature.7. The strap is portable and can be hung on the crib.8. The hookloop is soft and skin-friendly.10. Foldable, convenient to store.Spec:Material: Microfiber PU + Heating film + USB CableOptional Color: Pink, BlueSize: Approx. 12.5 7.5 7.5cm / 4.9 4.9 3.0inInner Diameter: 55-75mm / 2.2-3.0inPower: 5V 2AFrequency: 50H7Power: 10WWeight: 300g / 10.6ozRed beard flash: below 40 Degree C, the water temperature is not enoughGreen beard bright: 40 45 Degree C, suitable for milkingRed beard bright: 45 Degree C or more should not suitable for milkingPackage list:1 Milk HeaterNote:Thisproduct needs 5V 2A power supply ensures its normal use.