Our refrigerated insulin box easily solves the problem of refrigerant medicines. Intelligent one-button start intelligent constant temperature design, intelligent constant temperature 2 8 ?, convenient for the elderly. Turbo mute technology, quiet (decibel noise 30db), fast running speed, low power consumption, long life. Stainless Steel Liner: Round design with internal fixed part to fix the insulin pen. When traveling, you can also use a portable power supply. The 10000mAH mobile power supply can provide power for more than 12 hours, which is more convenient than the built-in lithium battery. Specification information Adapter voltage: AC100-240V Cooling temperature: 2-8? Product voltage: DC5V Product size: 27×8.5×11.5CM Product power: 5W Vacuum chamber volume: 500ML Internal diameter of vacuum chamber: 4.8X17.5CM Package Contents: 1 x medical refrigerator 1x Portable bag 1x plug 1x gift box packaging 1x DC charging cable 1x16,000 mAh power bank Note: If you have any questions, please feel free to contact us so that we can provide you with the best service "Happy Shopping"! "?VARIOUS POWER SUPPLY METHODS - Cigarette lighter, home power supply, laptop USB power supply, when traveling, you can use a mobile power supply for power. ?No built-in battery required, car travel, train travel, airplane travel, cruise travel, and unimpeded domestic and international travel. ?KEY OPERATION - Real-time temperature display, accurate monitoring of the temperature in the cavity. One-key start, long press for 4 seconds to turn on and off. ?360 circulation low temperature uniform refrigeration, vacuum cavity, uniform refrigeration, cyclic refrigeration has no dead corner strong core refrigeration effect. ?Core temperature controlled rapid cooling 2 ? -8 ? Intelligent temperature control, circulating cooling, to meet the refrigerating conditions of more different drugs, automatic frequency conversion for more peace of mind.