"I've been using the Ozonics for years and have had good success but this HR500 is over the top. I had a target buck I had been watching all summer and finally got to Kansas and the second evening he walked in downwind to 30 yards. It is amazing that a six year old deer would walk in downwind when it's 80 degrees and never had a clue I was there. I was able to harvest the wide 9pt. Thank you Ozonics!!"