The PSR-E443 offers many innovative features. The basic features for learning to play--like the Yamaha Portable Grand and Yamaha Education Suite (Y.E.S.) -- and features for when it's time to perform, like synthesizer Control Knobs for real-time control of filter, effects, and sound envelope. Powerful new Styles from different musical genres can be performed with 186 different patterns and 150 arpeggio Voices. The easy-to-use professional features and cool design set this keyboard apart in its class.