I have the Yamaha NP-11 Keyboard 61 keys ordered me because I myself wanted to like to play the piano as an accompaniment to teach singing. Since I generally think Yamaha for very high quality and well designed products, I chose this brand. After unpacking, immediately struck me that great design, you notice immediately that there is a piano-oriented, the red ribbon behind the keys makes it "almost" as a piano work. Compared to a normal keyboard, this also stands out for the few buttons that always wore the image of a keyboard for me. Now for the inside: You can choose different instruments, such as electric piano, piano, violin, etc. What I noticed at the sound immediately, is that when hiring a normal piano's volume must be turned up very to play reasonably loud. Much Light I should mention here, I heard a hearing performance by over 120% in both ears, so usually I have nothing very loud loud listening test. The other instrument settings of the sound from the volume here is much better. The buttons for the settings are very good, have a great pressure point and as mentioned earlier it has been very restrained here, so the device is not on, and fully buttoned. The buttons are nice, also similar wide as maintained at a piano, but what I felt as tiring, it was the buttons are generally a little too hard to press, but maybe I'm expecting too much here from a keyboard. A little too firm for my taste set. The number of buttons even with simpler pieces, is too low, it would have been desirable to inform you about. Generally, I can say that it is a great product, very suitable for beginners and people with not too high expectations. However, if you think to have a piano replacement found is mistaken. From a piano, the sound and the number of keys, one is very far away.