The PSR-E400 series is a superb all-around 61-key keyboard that is ideal as a beginner instrument but also a solid option for seasoned performers. The newest PSR-E473 includes a newly built tone generator that produces astounding increases in sound quality as well as high-grade effects such as delays. 290 Styles and 820 Voices with Super Articulation Lite Voices DSP insertion effects with 2 channels and 41 types Rapid Sampling Live Control Knobs for Groove Creator, Motion Effects, and a pitch bend wheel Massive Boost Buttons for Direct Category Access Mic input and vocal effects are available via USB audio recording/interface. L/R outputs on an individual basis