Mini refrigerator, or compact fridge, is a small, space-efficient cooling appliance designed for limited areas like dorm rooms, offices, and small apartments, offering convenient storage for drinks, snacks, and other small items. These versatile units can range in size from a few liters to around 100 liters (or about 3.5 cubic feet), and may include features like adjustable shelving, energy-saving technology, and sometimes even a small freezer or a cool-and-warm function for various needs.