I have just began using trumpets the last couple of years and am not real good so that is my disclaimer.
I have one of Mr. Ralph's .45's and a Jordan Yelper. The Jordan plays just like any other suction call but it is much smaller than your your "normal" trumpet. ie Billy Buice, Permar, etc.. I really like mine as it is small enough I put it in my Bino harness and don't have to really "keep up with it" when not in use.