XT4 Head muffs, feature Sportear's signature lightweight polymer plastic for a comfortable, light fit and rugged durability in a shooting ear muff. And our sleek, low-profile cups are specifically designed for maximum effectiveness when shooting. Versatile too, providing excellent performance in a wide range of field conditions, and utility in all kinds of shooting. Even at full volume, you can pull the trigger with confidence knowing that the sound-blocker circuit kicks in above 85dB. Experience the best hearing protection available with our 25 dB Noise Reduction Rating (NRR).