This is the Yamaha WX5 wind midi controller. This is an amazing instrument. It allows wind musicians like myself, to drive synthesizers. Keyboard players have been having all the fun for too long!It has a mouthpiece like a sax/clarinet, but the "reed" bends the note, rather than produce it. So depending on the sound module you choose to use, you can produce extremely realistic sounds. The VL70 module, is designed to be specifically used with the WX5. I am also usine the MU80, which is a lovely Yamaha Synth from the mid 90's. It allows me to make many hundreds more sounds; it's fun to play a hammond organ and leslie speaker with a "spaceage clarinet! Apart from the special cable to connect the VL70, there is a standard midi out. Power is through the cable from the VL70, although a seperate plug pack 12v dc can be used.There are some interesting accessories available from patchman music.com.