Portable Bottle Warmer Bag Green Keep bottles and drinks at the right temperature whether you are at home or on the move. This compact warmer uses precise temperature control and a rechargeable battery to warm milk, coffee, soy milk, and other beverages quickly and evenly. Key benefits Precise temperature control: Intelligent 21gear adjustment from 40 to 60 degrees C lets you choose the ideal temperature for different liquids. Reliable warm retention: Silicone lining and faux leather exterior provide even heat distribution and a comfortable touch. Longlasting power: Builtin 6400 mAh polymer battery provides 3 to 8 hours of runtime depending on the temperature setting; fully charges in about 2 hours. The unit cannot be used while charging. Universal fit: Holds most bottles with a diameter up to 80 mm. Suitable for milk bottles, coffee cups, water bottles, and similar containers. Portable and lightweight: Measuring approximately 10 x 12 cm and weighing about 285 g, it is easy to carry and store. Includes a lanyard for convenient transport. Product highlights Color: Green Materials: Faux leather, hardware, silicone Size: Approx. 10 x 12 cm Temperature range: 40 to 60 degrees C with 21 gears Battery: 6400 mAh polymer battery (included) Suitable bottle diameter: Up to 80 mm Gross weight: Approx. 285 g Package includes: 1 portable bottle warmer, 1 USB cable, 1 user manual, 1 lanyard Practical use scenarios Night feedings: Warm bottles quietly and precisely without using a stove or microwave. Travel and outings: Keep milk, coffee, or other drinks warm during shopping trips, hiking, or day trips. Work and commute: Warm a bottle or cup at the office or on the go for convenient hot drinks during the day. Notes Allow slight measurement variations due to manual measurement. Runtime varies with temperature setting; higher temperatures use more power. Do not operate the warmer while it is charging.