Intelligent temperature control features an HD LED display for easier operation and real-time temperature monitoring. Cold storage temperature range is 2-8°C (35-46°F). Operating temperature is below 25°C (77°F). If room temperature exceeds 25°C, the unit cannot cool below 8°C. Refrigeration space measures 192x61x30mm (7.5x2.4x1.1 inches). External dimensions are 220x100x90mm (8.6x3.9x3.5 inches). Capacity holds 3-5 insulin pens, 9 bottles of interferon, or 15-20 refills. Multiple power supply options include mobile power, household socket, car, or battery power. Includes a 10200mAh lithium battery with up to 6 hours of battery life. This insulin cooler box is designed to provide a convenient way to keep medicines, such as injectable insulin, at a safe temperature. Suitable for travel, work, and home use. Many work environments reach extreme temperatures, and even climate-controlled areas can be shut off after business hours. It also offers privacy for insulin storage instead of using a shared refrigerator. Product Specifications: Temperature range 2-8°C (35-46°F). Working environment below 30°C. Lithium battery capacity 10200mAh. Battery life approximately 6 hours. Using Tips: When ambient temperature is lower than 30°C, it can cool below 8°C. If using with a power adapter for a long time, please unplug the built-in battery. When connecting to power, do not set too low a temperature in humid environments to avoid excessive condensation and device short circuit. It is recommended to dry the device after each use.