The YPT-220 has 375 natural-sounding tones, 61 keys including "Stereo Grand Piano", 361 XGlite Voices, 12 drum kits and a sound effect kit. In addition, the YPT-220 has 100 accompaniment styles and 102 built-in songs. With the "Portable Grand" button you can call up an authentic stereo grand piano sound in no time at all. It has a powerful inbuilt Amplifier. The instrument also features a sonorous reverberation effect that lends the atmosphere of a concert hall to any performance. And with the Yamaha Education Suite, learning and practicing music is more fun than ever.