Good morning all...and Color, I had to remove your 'wish-desire', as it was kinda, well, almost...well you know why. I am surprised to see the TKO box in EBAY--I wonder where the guy got if from? As Isaiah says---it probably needs 'the rest of the system' in order for it to work properly. But a 'gadget' sort of person could open it up and figure out how it all works...my brother does that all the time! But he investigates the innards so that he can more easily figure out 'how',things are set up inside, so that he knows what to do if something goes wrong, and he is called to 'fix it'. The seller looks like he specializes in electronics and the like, himself.....but it was a surprise to see it! !