This product includes the physical upgrade of an older LP1 to the new GenB electronics.  You must ship your current LP1 to Looperlative for upgrade.  The upgraded LP1 is shipped back to you.  This adds the new features of the GenB LP1, but does currently remove the second auxilliary outputs (AUX2).  Overall GenB adds powered-off audio storage, better MIDI responsiveness, and lower audio noise floor.