SMART Target?

I don't see where the battery and microprocessor are hidden. Can't make out the directions on that low res image, so I don't know what makes it "smart". I see on the pistoleer site that it is a 3-yard trainer. At Gunsite we were started at 3-yards for rapid head shots. I suspect this is one of those deals where the RO calls out which numbers to hit in what sequence and the skull is there for the odd headshot, though from the side seems a little OTT.
 
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