Here’s a simple device that keeps your ice hole from freezing up. No more chipping out the transducer cable or skimming ice. Put batteries in and it runs all day down to -50 F (real temp, not that phony windchill stuff). Why you’d want to be out at -50 F is beyond me, but if you do, you can keep the hole open with one of these. For the rest of us not crazy enough to be out in -50F, we still have icing issues below 32 F and this rugged aerator will do the trick. From what I’ve hear with our customers, they work really well. Can’t go wrong with that, plus you can put the stone into your minnow bucket and keep them happy as well.