The PSR-E433 has great features for learning, music production and live performance. It has a huge range of high-quality voices and styles together with features that help you to play. There are also advanced features such as synthesizer-style control knobs which provide live control of sound elements such as filtering, effects and envelopes. The built-in speaker system, together with Yamaha's Ultra-Wide Stereo feature, provides a rich, powerful and expansive sound. It has a six-track recorder, USB connectivity, headphone socket and a sustain/footswitch connection.