The Casio CDP-130 is a basic digital piano with a weighted hammer action that gives it the feel of an acoustic piano. The low tones even feel heavier than the high ones. This makes the digital piano suitable for beginning keyboard players who are taking piano lessons. You don't have to connect external speakers, because the CDP-130 has integrated speakers. Connect headphones to the keyboard in order to practice without disturbing anyone. You can choose from 10 different sounds, switching from piano sounds to the sound of strings or an organ. Add a reverb to simulate the sound of a piano in a concert hall.