Features 1、PC-USB mini fridge, refrigerator, beverage, dr-can cooler, heater. 2、The novel mini USB refrigerator is well adapted to a can of beverage. 3、The USB fridge not only cools your drink, it also heats up. 4、A small portable USB fridge that can be used in your cubicle, home, office, bedroom or garage. 5、Excellent quality and durability. Specification Features: 1. PC-USB mini fridge, refrigerator, beverage, dr-can cooler, heater. 2. The novel mini USB refrigerator is well adapted to a can of beverage. 3. The USB fridge not only cools your drink, it also heats up. 4. A small portable USB fridge that can be used in your cubicle, home, office, bedroom or garage. 5. Excellent quality and durability. Specifications: Total size (length x width x height): approx. 8.89*7.87*19.30cm/3.5*3.1*7.6 inches Internal size (width x height x depth): approx. 7.87*13.97*7.11cm/3.1*5.5*2.8 inches Cable length: about 44 inches Switch control: "I" for heating, "II" for cooling, O for closing Working voltage: 5 volts DC Maximum power consumption: 10W Temperature range: 8-9 ° C cooling; 40-65 ° C heating Material: plastic Color: black and gray / red and white Package Size: Approx. 21*14.7*10.2cm/8.27*5.79*4.02inch Package List: 1 * Refrigerator 1 * User Manual