Crown Portable Keyboard with Teaching Functions. 128 Digitally Sampled Voices. 61-note Keyboard, 32-note Polyphony. Pitch Bend Wheel. User Programmable & Touch Sensitivity. 100 Rhythm Styles with Variations. Six Music-Training Courses. Each Course has at least 50 lessons: Ear (listen and play), Rhythm, Melody, Chord Dictionary (how to play Chord), Chord Recognition, & how to play 50 Built-In Classic Songs. Includes Power Adaptor.