I bought these units, one from retail, the other on eBay. I seem to remember seeing these display a "knight rider" effect where the LED bounces back and forth continously (not sweep tuning mode). Does anyone have any knowledge of such a "feature"? It seems trivial and superficial...it is, actually...but I bought this tuner to look cool on stage. If I'm going to pay this much for a tuner, I want it to do what I am looking for.