Alpha2 is upgraded on the basis of 1. Pretty smart. I've seen commercials. They're awesome. It's similar to the robot in science fiction movies ~ It has upgraded the intelligent voice system, which can be used for voice chat, simultaneous interpretation, voice search, voice retelling, voice instructions and so on; There is also an 8-megapixel camera with autofocus, which allows robots to take pictures and videos for you, which is very cool; There are also 20 joints, which can completely imitate human movements. The operation is to download voice commands from the APP, and human-computer interaction should be good.