Feature:1. PREMIUM MATERIALS: Portable bottle warmer is made of faux leather, hardware, silicone material, no irritating odor, even heat preservation, comfortable touch, can be used without worry.2. ADJUSTABLE TEMPERATURE: The bottle warmer bag has intelligent 21 gears temperature (4060) adjustment, precise temperature control, can be adjusted to the right temperature at will.3. LARGE CAPACITY BATTERY: This bottle warmer bag has 6400mAh large capacity battery, endurance of 38 hours, the higher the temperature, the greater the power consumption, fully charged in about 2 hours, can not be used when charging.4. LIGHTWEIGHT AND PORTABLE: Milk warmer bag is small in size and light in weight, easy to carry. Whether you are breastfeeding at night or going out, it can reduce mom's stress.5. WIDE APPLICATION: Suitable for most bottles, can hold soy milk, drinks, coffee, water, milk, so you can have a hot drink anytime, anywhere when you are hiking, shopping, traveling.6. GIFT OPTION: Travel bottle warmer can be used as a gift to share with friends, coworkers, relatives, family members who have newborns, so that your newborn can drink milk at the right temperature.Specification:Item Type: Portable Bottle WarmerMaterial: Faux Leather, Hardware, SiliconeSize: Approx. 10 x 12cm / 3.9 x 4.7inTemperature Gears: 21 Gears (40-60)Suitable for Bottles Diameter: 80mm/3.15in, Including Most of Milk BottlesBattery: Polymer Battery 6400mAh (Included)Gross Weight: Approx. 285g/10.0oz.Package List:1 x Portable Bottle Warmer1 x USB Cable1 x User Manual1 x LanyardNote:Manual measurement, please allow some errors.