Features: It is very simple to use. Just press a button to make it work. Three situations of high temperature, low temperature and power failure will alarm. Quiet (noise 30dB), fast running speed, low power consumption, long service life. With fast charging function, it is convenient to use the USB charging port at home or in the car, or connect it to a computer. Product specification: Product name: medicine refrigerator Battery standby time: 8 10 hours Single battery pack: 13600mAh 30 C) Applicable voltage: AC 110-220V DC 12V Packing list: Host 1, AC adapter 1, USB charging cable 1, battery (delivered according to the actual purchase quantity)?USB POWERED?The insulin cooler can be powered by USB, car charger, lithium battery and charging power supply. Premium brushless fan, running noise below 30dB, quieter and longer lasting, designed for people who need to work in car, airplane, travel, office, home and outdoors. ?HD DISPLAY?Large-screen LED display, real-time temperature display, accurate temperature control. Low battery, intelligent high and low temperature reminder. The operation is simple and easy to use even for the elderly. ?HIGH CAPACITY?Can hold 12 insulin pens or 75 insulin refills. Widely used in insulin, interferon, eye drops and serum storage. Insulin needs a separate cold room to effectively prevent cross bacterial infection. ?COOLING TEMPERATURE?The insulin travel cooler can keep insulin at a temperature of 2-8 C even in an ambient temperature of 30 C. The cooling effect is better than insulin ice packs. ?WORRY-FREE TRAVEL?The portable insulin cooler solves the problem of cooling medication when you go out, used to keep medications such as insulin or other injectable medications at a safe temperature.