It's quite useful. My home is the commander-in-chief's 490-screen refrigerator. What I like best is that this refrigerator has a smart big screen of 2 1.5 ". I like chasing plays. I used to run back and forth in the living room and kitchen when I was cooking. If I am fascinated sometimes, I will forget the jar. But it's convenient now. The smart big screen of this refrigerator has the function of "audio-visual entertainment". Watch popular TV dramas if you want, and you are no longer afraid of forgetting to cook. And the smart big screen also has a "sports" function, and you can also exercise in the kitchen. Sometimes I don't bring my mobile phone when cooking, so I can't hear the call, but the Bluetooth phone of this refrigerator can be answered at any time, and there is a warm message function to prompt me on time.