Riven Tremor Elk Diaphragm Call SPECIFICATIONS ANIMAL TYPE: ELK BRAND: RIVEN CA PROP 65: YES CALL TYPE: MOUTH CALLS CALL/DECOY TYPE: BIG GAME CALLS COUNT: 1 DESCRIPTION There is no greater sound in the elk woods than a bull elk’s bugle. It was designed to do it all when it comes to Bull & Cow sounds. This call is easy to run and has unbelievable range. This call absolutely rips!