What is the purpose of the Black Boxes NCAA Officials wear during games?

[JugglingReferee]

Originally Posted by BktBallRef

Unless Mike has drastically reduced the price, it's closer to $2500. The batteries are a huge issue. Each set lasts about two games before needing replacement. The batteries are available from other vendors at lower prices but you agree to buy them from PTS. I know of two schools that got tired of the expense and sent it back.

I took a look at their website and immediately suspected that the batteries would be proprietary. There's nothing like residual income. . .