im done using them for a while.....last year was the first year i used one...just a hen to give the gobbler some insurance of what hes hearing...used it again this year...just dont know if its a helper to me or a hurter.....a 30 or 40yd shot would be about the max in most spots i hunt...so im guessing gun hunting right now how i do i really dont need one.....just need birds to cooperate....