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Specialized Target Optimization™ (STO) is the world’s first hearing technology that isolates and enhances the exact frequencies hunters need to hear. We analyzed the acoustical properties of game vocalizations, calling, voices and shooting to develop this patent-pending sound processing system.

STO is game and hunt-specific. Waterfowl devices make voices in the blind and calling clear and natural, wings-whistling, wood duck squeals and mallard drakes easily audible, and loud-calling and shotguns safe. Turkey devices make gobbles and yelps louder and clearer for better detection, distance judgement, and direction. Elk devices make bugles, grunts, and barks louder and clearer for better detection, distance judgment and direction, Deer devices accentuate the sounds of deer movement and vocalizations.