Pro Ears Pro Tac Mag Gold - Military Grade Electronic Hearing Protection and Amplification - NRR 30 - Range Ear Muffs - Lithium 123a Batteries WHAT SETS US APART FROM THE REST? For starters, Pro Ears offers the only ear muffs with dual, fully-enclosed military-grade circuitboards with gold connectors. WHY'S THIS IMPORTANT? It allows the incredible ability of independent volume control. Set each ear level separately to best suit your individual hearing needs whether to compensate for hearing loss in one ear or increase situational awareness. PROPRIETARY SOUND TECHNOLOGY: World's only DLSC Technology with Full Spectrum Sound to protect hearing while letting you hear softer sounds. Eliminates &quot;tinny&quot; sound. INDUSTRY-LEADING METRICS: The Pro Tac Mag Gold Series has a Noise Reduction Rating (NRR) of 30 and a lightning fast 1.5ms response (attack) time, which greatly enhances your situational awareness while simultaneously protecting your hearing from loud nois COMFORT &amp; CONVENIENCE: Modularly designed ProForm Leather ear seals and visco-elastic foam padded, easily adjustable headbands enhance comfort while auto-shutoff, low-battery indicator and 3.5mm input jacks provide unmatched functionality. MULTI-PURPOSE PROTECTION: Along with offering ear protection for hunting and shooting, our ear muffs have a wide range of applications including everything from construction and yard work to sports events, concerts, fireworks, travel and so much more. CRAFTSMANSHIP YOU CAN COUNT ON: Unlike others, we've spent the past decade focused on optimizing hearing protection. Pro Ears are reliably made in the USA, sold by a veteran-owned business and backed by an industry-leading 5-year warranty.