Intelligent Temperature Control: A high-definition LED display simplifies operation and displays real-time temperature, making it more convenient for the elderly. Cooling temperature: 2-8C (35-46F), operating temperature below 25C (77F). If the room temperature exceeds 25C, the housing will not cool below 8C. Refrigeration space (L*W*H): 192*61*30mm/7.5 by 2.4 by 1.1 inches; external dimensions: 220*100*90mm/8.6 by 3.9 by 3.5 inches. It can accommodate 3-5 insulin pens, 9 vials of interferon, or 15-20 refill cartridges. Multiple power supply options: Suitable for power banks, household outlets, cars, and batteries. Equipped with a 10200mAh lithium battery, it lasts up to 6 hours. Application: The insulin cooler is designed to provide a convenient and economical way to keep medications, such as insulin or other injectable medications, at a safe temperature. Besides travel, you can also use it at work and at home: many work environments experience extreme temperatures; even thermostatically controlled areas may shut down at the end of the workday. Most people prefer to store insulin in a private environment rather than a shared refrigerator. [Product Specifications] Temperature range: 2 - 835F - 46F Operating environment: below 30C Lithium battery capacity: 10200mAh Battery life: about 6 hours External dimensions: 220 * 100 * 90mm / 8.6 * 3.9 * 3.5 inches Refrigerated storage space (L * W * H): 192 * 61 * 30mm / 7.5 x 2.4 x 1.1 inches Usage Tips 1. When the ambient temperature is below 30F, it can be cooled to below 8F. 2. If using the power adapter for a long time, please unplug the built-in battery. 3. When connected to a power source, avoid setting the temperature too low in a humid environment to avoid excessive condensation and short circuit of the device.