PORTABLE BOTTLE WARMER Characteristics: 1. 1. Small and easy to carry. 2. 2. With this heating bag, your child can drink warm milk at any time and keep warm at a constant temperature. (Insulation requires USB to be connected to power) 3. 3. Can be used by connecting to mobile power supply, charging head and car USB. 4. 4. Adjustable hook and loop closure, suitable for different bottles (diameter: 55-80mm) Specification: Product Name: Intelligent Insulating Milk Bottle Cover Applied products: baby bottles, glass cups Product dimension: about 29*13cm (11.4"*5.1") Product Material: PU Leather Heating Film Lining Product features: 3 levels of temperature control, continuous heating at constant temperature Power Input: 5V2A 50HZ Package weight: about 0.1kg Packing volume: about 11.5*3*17cm 3 Colorful lights remind, easy to control milk temperature Switch function: 1. The yellow light of the thermostat link power button (battery) is always on. 2. long press 3S to turn on blue light, mid-range 70 output 55 degrees. 3. press again and the red light is on, high-end 100 output 65 degrees. 4. Press again and the green light is on and low-grade 40 output 45 degrees. List of packages: 1 * Baby bottle warmer1 * Data cable