Warm and Cool: Simply switch between warm and cool modes to suit your mini fridge needs. Before switching the working mode, the power switch should be placed in the "OFF" position for more than 5 minutes. Please note that the internal temperature of the refrigerator in cooling mode is affected by the environment. Mini office refrigerators have a minimum temperature of 40°F and a maximum temperature of 140°C. Portable 4L Mini Refrigerator: This small refrigerator has a capacity of 4L and can store up to 6 cans. The portable refrigerator weighs about 1.8 kg, and even a girl can easily lift it. Easy to carry. It comes with a removable shelf and a practical door handle for easy storage and on-the-go items AC/DC power supply: AC adapter for standard wall socket, DC adapter for vehicle cigarette lighter. Just switch the mode according to your needs, the mini car refrigerator is suitable for a variety of scenarios. Portable refrigerators can be used in bedrooms, offices, dorms, classrooms, cars, travel, road trips, and more. Low Noise: When the Mini Skincare Refrigerator is running, Silent Technology reduces noise to a minimum (25dB), so quiet that you won't be disturbed even while sleeping. (Please note: the sound is slightly louder when the refrigerator starts to work, and the sound returns to normal after about 30 seconds) Environmental protection: The semiconductor heat dissipation chip does not contain freon, which is environmentally friendly, durable and energy-saving. The perfect mini fridge for snacks, beverages, makeup, beauty and skincare. The small tabletop refrigerator can store skin care products, beverages, fruit, beer, snacks, breast milk, insulin and medication, and is the best gift for women and girls.