Casio CTK-6250 61-Key Keyboard with Power Supply AHL sound source delivers 700 high quality built-in tones Store your own original tones for instant recall 21 preset rhythms cover a wide range of musical genres Song Sequencer provides 16 tracks plus one system track that supports recording of up to five songs Built-in effects include reverb, chorus, and DSP including delay, phaser, flanger, wah, rotary and more