2018. According to Okuda's official website, the Smart Rubik's Cube 3.0 upgraded by Okuda in 2018 is industry-leading. Okuda has always valued "precipitated technological innovation and product iteration" rather than blindly following the pursuit of speed. The Smart Cube 3.0 air duct system has strong suction power and ensures fresh air in the kitchen. The three-dimensional direct injection upper air intake combustion system burns quickly and evenly, making it easy to stir-fry in high flames. The touch ignition control system subverts tradition and changes the traditional knob-type mechanical ignition method. It can be turned on with a light touch, allowing you to enjoy kitchen technology intelligently. In addition, it is also equipped with a large intelligent thermostat, which warms the stomach intimately and brings more convenience to use.