Sceery Model Ace-1 Special Elk Call The most effective cow / calf talk ever made! Fitted with a tough voice unit, tapered reed and bite band, it works better than ever for both volume and pitch control. Dr. Ed Sceery is the original inventor of these patented, bite down style elk calls. They have proven to be the most effective ever made and have become the high quality standard for hunting elk with a rifle or bow.