I'm selling my Ischell inside box guitar mic system for $250. It was purchased from Django books about a year ago, and has seen light use since then. It works fantastically well, sounds great with zero feedback. I'm selling it because my musical direction has changed and I don't need it anymore. It comes with a mic connected to a 1/4 guitar jack: a little box that acts as phantom power; some strips of white putty to use to attach it to your guitar.
I'll ship it within the US for $10, but If you want me to ship it overseas, I will have to calculate a different shipping rate.
PM me if you're interested