Specification Product name: Insulin refrigerator Product material: ABS shell, one-piece aluminum liner Rated voltage: AC 220V, DC 12V Box insulation layer: Polyurethane foam Temperature adjustment range: -10? 65? Product size: External (36 28 30 cm 14.2 11 11.8 in) internal (28 18.5 22.5 cm 11 7.3 8.9 in) Packing list: 1 insulin refrigerator box, 1 12V car power cord, 1 home adapter Matters needing attention: 1. When using the external power supply for a long time, please take out the battery and overcharge and leak. 2. If it is not used for more than a week, please take out the battery to prevent excessive discharge. 3. Don't use it for a long time, charge the battery every three months to prevent over-discharge. 4. If you have any questions about our products, please feel free to contact us, we will reply you within 24 hours.POWER SUPPLY: Support a variety of charging methods, USB data cable, charger, car, home can be used, suitable for travel, home, commute, business trip, office. INTELLIGENT DISPLAY: With intelligent digital display touch screen, simple and easy to understand, real-time display of temperature and power information, more convenient for the elderly to operate. LARGE CAPACITY: The internal volume is 12 liters, which can hold insulin or other medicines needed for several months. TEMPERATURE ADJUSTMENT: Support -10?-65? temperature adjustment, which is enough to meet the temperature requirements of your medicines. INSULIN REFRIGERATED BOX: Special refrigerated space for biological preparations (can store insulin injection pens and cartridges), avoid mixing with other stored items, and prevent cross-contamination.