Intelligent Temperature Control: HD LED display, easier to operate, real-time temperature display, more convenient for the elderly to operate. Cold storage temperature: 2-8 (35-46), operating temperature below 25 (77). If the room temperature over 25 the case can`t cooler below 8. Refrigeration Space(L*W*H): 192*61*30mm/ 7.5 2.4 1.1 inch; external dimensions: 220*100*90mm/8.6 * 3.9 * 3.5 inch. Can hold 3-5 insulin pens or 9 bottles of interferon or 15-20 refills.Various Power Supply Methods: Suitable for mobile power supply, household socket, car, battery power supply. With 10200mAh lithium battery, battery life is up to 6 hours. Usage : Insulin cooler box is designed to provide a convenient and affordable way to keep medicines (such as insulin or other medicines that are injected,) at a safe temperature during. In addition to travel, you can use it at work and home: Many work environments reach extreme temperatures; even climate controlled areas can be shut off at the end of the business day.Most people prefer privacy for their insulin storage, rather than placing it in a shared refrigerator. [Product Specifications]Temperature range: 2 - 835 F - 46 FWorking environment: Below 30Lithium battery capacity: 10200mAhBattery life: about 6 hoursExternal dimensions: 220*100*90mm/8.6 * 3.9 * 3.5 inchRefrigeration Space(L*W*H): 192*61*30mm/ 7.5 2.4 1.1 inch Using Tips1. When the ambient temperature is lower than 30, it can be cooled to below 8.2. If use it by power adapter for a long time , please unplug the built-in battery.3. When connecting the power supply, please do not set too low temperature when the environment is wet, to avoid excessive condensed water and short circuit of the device.4. It is recommended to dry the device every time after you use.