I'm not sure why the makers didn't indicate on the call which end is placed against your mouth! It takes a good eye to discern that.....the sound is incredible...AFTER you've spent some time practicing. Don't buy it the night before season as a last minute brainstorm unless you don't mind staying up half the night trying to master it. In short, I'm tickled to have it in my collection, but I will use a permanent marker so I can see in low light which end to blow into.
Took awhile to get used to, but once you get the tongue rolling under control it's fairly easy to operate. Went scouting last weekend and had hens and gobblers responding. Can't wait to use it during season. Only reason I didn't give it 5 stars was because it was a bit pricey and the instructional DVD could have had more instruction on using the call. Overall, this was a great purchase and I highly recommend.