Product parameters: Product Name: Insulin Refrigerator External dimensions: 210 140 55 millimeters Battery life: 8-36 hours Battery voltage: 11.1 V Temperature inside the box: 0-18 C Battery capacity: 6800mAh Rated power: 15W with external power supply, 9W with battery Cooling temperature: about 35 C lower than ambient temperature (The above parameters are manually measured with certain errors, please refer to the actual product) Preventive measures: 1. It is strictly prohibited to enter the machine and avoid contact with liquids. 2. The ventilation holes at the bottom and on both sides keep the air unobstructed. When loading a portable backpack, the ventilation holes of the backpack must be aligned with the cooling holes. It is strictly prohibited to put the refrigerator in a sealed bag, otherwise it will block the air, cause the temperature inside the box to rise, and damage the medicine. 3. When going out, prepare a reasonable number of B battery packs according to the length of travel time to ensure the normal use of the machine. 4. When using an external power source for a long time, remove the lithium battery to avoid overload or leakage. 5. When the machine is not in use for more than a week, remove the lithium battery to prevent excessive discharge and extend the battery life. 6. When the machine is not in use for a long time, charge the lithium battery every 3 months to prevent excessive discharge and extend the battery life.Alarm reminder: When the insulin refrigerator is low, the insulin refrigerator will emit an intermittent beep to remind users to replace the battery and charge it in a timely manner. Portable travel: The insulin cooler comes with a USB power cord and home adapter cable, which can be used for various charging methods such as vans, laptops, and mobile power supplies. Insulin coolers can be carried on airplanes. Accurate temperature control: The insulin refrigerator can control 0 to 18 degrees per degree, which can meet the temperature control of drugs and is easy to control the deviation of temperature rejection. Easy to operate: The insulin refrigerator adopts a high-definition LED display screen, making it easy for the elderly to operate The portable insulin refrigerator adopts intelligent constant temperature technology, which can cool or heat and maintain the set temperature. Long term waiting: The lithium battery in the portable insulin refrigerator can last for 10 hours and can be connected to a mobile power source.