"With high-quality voices, powerful styles and innovative features including a new Pattern function, the PSR-E433 is a great keyboard for creativity and performance. PSR-E433 has great features for learning to play such as Yamaha Portable Grand and Yamaha Education Suite (Y.E.S.) -- and when it's time to perform, synthesizer control knobs provide real-time control of filter, effects, and sound envelope. 186 powerful new styles from different musical genres are on-board together with arpeggios and patterns. These easy-to-use professional features and cool design set this keyboard apart in its class."