Dude,.. that’s damnright stupid IMO 
"With this thing you can play sax with your own voice… Even wireless now!
For converting the human singing voice in midi-notes with pitch and volume-informations.
intermediate tones will be sent as pitchbend-data, e.g. for a theremin-simulation.
the Pitchbend-function can be switched off for “usual” instruments, e.g. sax, trumpet
panflute, organ, piano, etc.
ready for connection for all midi devices with a GM-soundmodule"
[please forgive me my several spelling mistakes]