You are wrong again. It is you who are highly arrogant! You can not explain why another keyboard are innovative enough. And always ask me some meaningless questions. Again, is there any relationship between the prototype and pirating works? In our country , prototype is not necessary for patent. Your product has no innovation though you can build a prototype, is it difficult to understand? Do you know what is innovation ?
I also tired of this discussion with someones like you. It is meaningless…But I am still glad to view some your funny posts! say, 180 degree camera… haha…