The Akai Professional EWI4000S is a newly designed electronic wind controller. This expressive musical instrument incorporates several improvements in the development of MIDI / Synth instrument capabilities.The EWI4000S has many of the long sought after controls and functions that are necessary for expressive performance. While these benefits have been proven by its predecessors, the EWI offers these features at a much lower price. There are several improvements to the design as well, such as having a built-in sound module, direct MIDI IN and Out, and other updated operating functions. These features make playing the EWI4000S easier than any other electronic wind instrument.