Yamaha sonogenic "SHS-500" Keytar: JAM FUNCTION

Yamaha sonogenic "SHS-500" Keytar features JAM function.
No matter which keys you press, the notes automatically match the song, so you don’t have to worry about hitting the wrong notes, fingering technique or even knowing the proper scales and chords.

Yamaha sonogenic "SHS-500"
http://www.yamaha.com/2/shs-500/

The Yamaha onogenic SHS-500 is a Keytar ("Key"board + Gui"tar") from Yamaha that is perfect for music lovers who want to participate in making music.

All-in one to play.
30 high quality Voices (instrument sounds) with 48-note polyphony
Assignable real-time Control Knob, Pitch Bend and Modulation wheel
Pro Quality mini-keyboard
USB Audio & MIDI interface
Wireless Bluetooth MIDI connectivity (This function may not be included depending on the country in which you purchased the product.)
JAM function