I bought this new, realized i don't have time to do it justice and put it back in the box.  

Never used, perfect condition, docs & their fancy USB cable.  (it's USB-powered, no clicnkly power supply)

there're a ton of how-to videos on YouTube for this unit and 2 excellent software apps, both free.

i hope to get back to this one day but in the meantime, it should not just sit around when it could be making music and fun for you and your friends!