I did not plug in the main product,the Desktop.Just opened the package. Opened the small box with the mouth and the mouth ca,e out in 3 pieces: the upper part,the lower part,and a small plastic piece which I could't figure out where it fits!Bottom line is, I am disappointed because I believe the ,mouth was like that when shipped!I will not  return it! I will try the desktop andkeyboard and then make my final evaluation! But the mouth gave me a bitter taste!