Patent-pending Specialized Target Optimization™ (STO) isolates and enhances the exact frequencies duck hunters need to hear, while AlphaShield Compression reduces gun blasts and loud calling to safe levels. Voices are clear, calling sounds natural, and wood duck squeals, whistling wings, and mallard drakes are all easily audible.

Available in AlphaShield, an industry-first universal fit with adjustable tips for extreme comfort, and CustomShield, custom molded for the most personalized fit possible.