I wouldn't be without mine now, at first I had no luck but persevered by trying different Volume levels and direction etc, It seems to me that you have to believe it's going to work and in my case it does, had a friend recently with a Duck pond being raided every night by one or more Foxes, my Friend had tried and failed to get them, 20 minutes with the caller and 3 dead Foxes Job done. working for me at the moment is the Tim lester beer can call and Vixen in heat, But Vixen in heat needs playing loud for 3 or 4 cycles then reduce volume. The last 2 shot recently attacked to caller, Im using the Icotec Nightstalker, Its the same as the Outlawbutwith UK specific calls on it.