I thought that the buttons are too small for my big fingers ... Well, I was wrong. This mini keyboard is perfect, very soon get used to the system via mouse keys work perfectly once automatic calibration done. I highly recommend this product for sony those who do not want to annoy with a large keyboard .... Moreover it does not hinder the gameplay with the joystick. In short, I am very happy. Thank you for your AMAZON ultra fast delivery and your seriousness.