well today and yesterday i was hunting, i saw about 12 or 13 small buck and only 2 bruisers......all of them were called in with the buck roar.....i love this thing. i would watch the deers reaction and even if they knew something was wrong and started their lil foot stomp dance...if i would hit that they would stillcome closer.....i found the best results when i was up agaisnt a thicket so they would have to come close for a look....i think this is actually better than the buck growl because it has the built in snort/wheeze feature which stopped every deer dead in its tracks (even does).....i love this thing..it secures nicely to your arm with the supplyed arm band so you can have hands free operation even with your bow drawn...this thing is great!!!!