Dual Functionality: It can both cool and warm contents. Cooling typically reaches 18–25°C below ambient temperature, while heating can go up to 65°C.Capacity: The 4-liter interior can hold approximately six standard 330ml cans or four 420ml bottles.Power Sources: It features AC/DC dual power compatibility, meaning it can run on a standard 12V car cigarette lighter socket or a 110V–240V home power outlet.Thermoelectric System: Unlike standard refrigerators, it uses semiconductor technology rather than a compressor. This makes it lightweight, low-noise (approx. 28dB), and energy-efficient.Portability: It is designed with a small footprint (approx. 24x23x17.5cm) and often includes a recessed carry handle for easy transport between a car, office, or hotel.