With the Yamaha Arius YDP-S52 digital piano, you get the feeling that you're playing an acoustic piano. The keys of this piano have a weighted hammer mechanism. This allows you to put more feeling into your piano playing. With the included sustain, sostenuto, and soft control pedals, you can lengthen and accentuate the tones with your feet. This gives you more time to find a new hand position. With the soft control pedal, you make the keystrokes sound softer. This makes the Arius YDP-S52 perfect for practicing classical pieces. Do you want to neatly install the piano in your room? You can install the piano at playing height using the included underframe.Note: you can find the included AC adapter at the side of the box, packed in polystyrene.