I don't believe it is the new "can". I always thought the "can" sounded like a real animal, and I had heard that sound from deer before. I've never heard a growl. As a product company I think they are "stretching" here to come up with a new product to sell. I have heard their growl on the video and I think you get closer to the actual sound with a grunt tube then what they are selling.

It is amazing how fast some people buy into it itas fact though. They create a call and all of a sudden people are swearing they are hearing "growls" all over the place. I have to think some biologist ot deer farm onwer or hunter would have noticed deer "growling" over the last 100 years. Between us, if I am walking through the woods in the dark and I hear "growling" .... that is not a real good thing!