Product name: Smart insulation milk bottle cover <br>Applicable products: baby bottles, glass cups <br>Product size: about 29*13cm (11.4"*5.1") <br>Product material: PU leather + heating film + lining <br>Product features: 3 levels of temperature adjustment, continuous constant temperature heating <br>Power input: 5V2A 50HZ <br>Package weight: about 0.1kg <br>Packing volume: about 11.5*3*17cm <br>3 Color lights to remind, easy to control the milk temperature <br>Switch function: <br>1. The yellow light of the thermostat link power (battery) button is always on. <br>2. Long press 3S to turn on the blue light, the mid-range 70% output 55 degrees. <br>3. Press again and the red light is on, the high-end 100% output is 65 degrees. <br>4. Press again and the green light is on, and the low-grade 40% outputs 45 degrees.<br>1、1. Small and easy to carry. <br>2、2. With this heating bag, baby can drink warm milk at any time, and keep warm at constant temperature. (Insulation requires USB to be connected to the power supply) <br>3、3. It can be used by connecting to mobile power, charging head, and car USB. <br>4、4. Adjustable hook and loop fastener, suitable for a variety of bottles (diameter: 55-80mm)Due to the lighting effects and shooting angles, there is color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.1 * Baby bottle warmer</br>1 * Data cable