I recently bought a Yamaha Clavinova CVP 401, i found an AUX Pedal port underneath, what is it?
can i connect a microphone or guitar and save my voice on it?

and i also want to know what comes with the it in the box, it seems like something's missing.

i got: Seat, Manual Book, Data Book, and Sheet Music.

there's no book with a flyer as the website said when i tried to register.

Much thanks,
Nef.