Some of the other unique features on this model include a full weighted 88 key action, built-in speakers, 2 headphone jacks, and a music desk. This piano is also available with an optional designer stand and a 3-pedal system with a real working sostenuto pedal. The ES110 is a keyboard that’s been out for a few years on the market, so it is not the new kid on the block by any means. That being said. in a testament to the engineering and the high-quality of what Kawai generally puts out there, this is an instrument that still tops many wishlists, still has a ton of relevance in the marketplace, and is still standing up to even the newest competitors in its price range.