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.
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.