<h1>Specialized Target Optimization™ (STO) </h1>

Specialized Target Optimization™ (STO) 

Meet the World’s first patented pursuit-based hunting programs designed to replicate the sounds of your specific hunt. This is the only industry patented sound technology that both enhances and protects.

Our hearing devices feature patent pending Specialized Target Optimization™ (STO). STO is the world’s first hearing technology that isolates and enhances the exact frequencies needed to improve hearing for your specific environment. We analyzed the acoustical properties of game vocalizations, calling, voices and shooting to develop this patent-pending sound processing system.

TETRA products instantly shut down and instantly recover for sudden loud noises, like gunshots, providing the wearer full protection at the very moment it’s needed. For more sustained loud inputs, AlphaShield Compression™ limits the overall output to a safe level, then returns to normal amplification once the loud input has stopped. Never miss a sound you want to hear, and protect your hearing for life.

AlphaShield Compression

AlphaShield Compression

TETRA products instantly shut down and instantly recover for sudden loud noises, like gunshots, providing the wearer full protection at the very moment it’s needed. For more sustained loud inputs, like loud calling, AlphaShield Compression™ limits the overall output to a safe level, then returns to normal amplification once the loud input has stopped. Never miss a sound you want to hear, and protect your hearing for life.

ClearComm

ClearComm

“ClearComm™ is our proprietary algorithm that accentuates human speech while minimizing noises and distractions that occur outside of the frequency range of human voices. ClearComm is useful for better understanding speech and talking with shooting partners, hearing speech on the range, as well as in other daily activities that require better hearing.

WATERFOWL

WATERFOWL

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.

DEER

DEER

Deer devices accentuate the sounds of deer movement and vocalizations.

TURKEY

TURKEY

Turkey devices make gobbles and yelps louder and clearer for better detection, distance judgement, and direction.

ELK

ELK

Elk devices make bugles, grunts, and barks louder and clearer for better detection, distance judgment and direction.

RANGE

RANGE

Range devices are optimized for the most critical sounds for the shooter, while providing hearing protection from gunshots.

UPLAND

UPLAND

Upland devices enhance bird flushes, dog e-collars, and cow bells.

OUR RESEARCH

OUR RESEARCH

How We Localize Sound

Hunters and animals have two ears, enabling the brain to decode sound location using timing, volume, and frequency differences. Sounds from the left hit the left ear milliseconds before the right, are louder in the left ear, and have more frequencies. TETRA's AmpPod technology maximizes these hearing clues in both ears.