Product parameters: Product Name: Frozen Insulin Box Battery life: 10-30 hours Cooling temperature: about 35 C lower than ambient temperature External dimensions: 207 94 91mm Temperature inside the box: 0-18 C Battery voltage: 11.1V Battery capacity: 13000mAh Rated power: external power supply 15W, battery 9W Note: Due to certain errors in manual measurement, please refer to the actual product Packaging list: 1. Host refrigerator 2. Lithium batteries 3. Handbag 4. USB power cord 5. Home adapter cable 6. Instructions for use prevention: 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 the air will be blocked, the temperature inside the box will rise, and drugs will be damaged. 3. When going out, prepare a reasonable number of battery packs according to the 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 you do not use the machine for more than a week, please 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 cooler is low, the insulin cooling box 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. Accurate temperature control: The insulin refrigerator can be controlled between 0-18 degrees Celsius, 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.