Product Detail 128-note polyphony Huge sonic palette with over 850 incredible instrument Voices, including some from the PSR-S900 Realistic built-in accompaniment with enhanced guitar styles 16-track sequencer, audio recorder, large, easy-to-read screen Internet Direct Connect and USB connectivity, Dozens of effects . The "Yamaha PSR-S710 61 Key Arranger Workstation" is best product for you. We recommended Yamaha PSR-S710 61 Key Arranger Workstation