$50 · Jamstik guitar MIDI controller (Mac/iOS only)

This was my father's, I know very little about it. It does appear to work, pairs with my iPad, triggers notes. You need a Mac or iOS device to use this one, won't work with Windows or Linux. Priced low to sell and because the micro USB cable that goes with it couldn't be found (though the battery is charged at the moment), it's a standard cable type though. Offers welcome.