Product name: Intelligent insulated milk bottle cover Applicable products: baby feeding bottles, glass water cups Product size: 29 * 13cm (11.4 "* 5.1") Product material: PU leather+heating film+lining Product features: 3-stage temperature regulation, sustainable constant temperature heating Power input: 5V2A 50HZ Package weight: 0.1kg Package volume: 11.5 * 3 * 17cm Package list: milk bottle bag, data cable, instructions (carton packaging) Packing quantity: 160pcs/ctn Box gauge: 64 * 47 * 36cm Three-color light reminder, easy to control the temperature of milk washing Switch function description: 1. The yellow light of the thermostat link power (battery) button is always on 2. Press and hold the button for 3S to turn on the blue light, and the mid range 70% output will be 55 degrees 3. Press the red light again, and the high gear 100% output will be 65 degrees 4. Press the green light again, and the low gear 40% output will be 45 degrees 5. Press and hold 3S to shut down, keep cycling, output 15% when output is stopped, frequency 3S sensor open circuit and short circuit protection, heater output open circuit and short circuit protection, 2.5A overcurrent protection characteristic: Small and easy to carry, mom is so relaxed 2. The baby should drink warm milk at any time and maintain constant temperature and heat preservation (Thermal insulation requires USB to be connected to the power supply) 3. It can be connected to a mobile power supply, charging head, and on-board USB for use 4. Adjustable circumference MAGIC TAPE, suitable for a variety of milk bottles (Direct 55-80mm) 5. Four layers of material, firmly locking the temperature (PU first layer, PU second layer, heating layer, comfortable interior)