characteristic: 1. Insulin interferon growth hormone vaccine eye drops and other refrigerated drugs 2. Various power sources and USB charging methods can be connected and charged on cars, homes, and other devices. 3. Integrated batteries that can be transported on airplanes. 4. Portable size suitable for travel or home use. Product specifications: Product Name: Portable Refrigerator Drug Refrigerator Intelligent adjustable temperature: 2-18 C Voltage: 220V (AC), 12V (DC) Product appearance size: 21 9.5 10.2 cm Internal dimensions: 17.5 6.7 2.3 centimeters Waiting time: 6-8 hours Lithium battery capacity: 10200mah Rated power: external power supply 15W, battery 9W There is something inside the box 1 x medical refrigerator 1 x Shoulder strap 1 x transport box 1 2 3x lithium battery Note: Due to some errors in manual measurement, please refer to the actual product(Power) can use USB cables, wall chargers, electric banks, cars, homes, batteries, suitable for travel, home, travel, business travel, and offices. (High definition LCD screen) High definition LCD screen, intelligent temperature control, real-time temperature display, temperature inside the box is 2 to 8 degrees, making it more comfortable for elderly people to operate. (Low noise and quiet) High quality ball shaft fan, operating at less than 30 decibels, creates a quiet atmosphere and allows you to enjoy high-quality sleep. When the machine power is low, the cold box will intermittently sound, reminding users to replace the battery or charge it in a timely manner. The portable insulin cooler solves the problem of drug cooling when going out, and is used to keep drugs (such as insulin or other injectable drugs) at a safe temperature.