The tamed Lego cube

Here is my idea: a kind of little robot that would obey the voice of his master a bit like a pet, who would follow the owner of this robot on request, this object would be equipped with several sensors such as sound, image, would be able to recognize multiple voices and adapt to his environment, he could film, record sound and broadcast, he would have lights to light or just for fun. This is the kind of object that I want to buy.