Intelligent temperature control features an HD LED display for easy operation and real-time temperature monitoring. Cold storage temperature range is 2-8°C (35-46°F). Operating ambient temperature must be 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 outlet, and battery power. Includes a 10200mAh lithium battery providing up to 6 hours of battery life. Designed to provide a convenient way to keep medicines such as insulin at a safe temperature during travel. Also suitable for use at work and home where climate-controlled areas may not be available. Many users prefer private insulin storage rather than using a shared refrigerator. Product specifications include a temperature range of 2-8°C (35-46°F). Working environment must be below 30°C. Lithium battery capacity is 10200mAh. External dimensions are 220x100x90mm (8.6x3.9x3.5 inches). Refrigeration space measures 192x61x30mm (7.5x2.4x1.1 inches). Usage tips: When ambient temperature is below 30°C, the unit can cool below 8°C. If using with a power adapter for extended periods, please unplug the built-in battery. When connecting to power supply in humid environments, avoid setting too low a temperature to prevent excessive condensation and device short circuit. It is recommended to dry the device after each use.