I've heard bucks snort-wheeze three times in hundreds of trips to a tree stand. IMO the chances of a gimmick like that making any difference in your successful harvest of a buck are astronomical! It's just another way for someone to dupe folks and get into their pocket for more money. IMO don't waste your time or your money! I also agree with BobCo although I will do some calling at specific times and I have had some calls that I would give credit to helping me harvest some bucks but a snort-wheeze is a scam IMO. Good luck.