The new product DGD4-4CD of Tianji Electric Appliance is a knob electric cooker, which is easy to use! Old people can also use it, and the selection function is rotary. You just need to put the ingredients in the liner, then turn the knob in front of you, twist it to select a function, and turn to the function you want. I like such a simple and rude operation, and there is nothing to worry about.