These 3M 90563 Folding Earmuffs (NRR 25) are a versatile, essential piece of hearing protection designed for portability and consistent performance across a wide variety of work environments.

• Noise Reduction Rating (NRR) 25: With a rating of 25 decibels, these earmuffs provide a robust level of protection suitable for most standard construction activities, such as using power drills, circular saws, or working near moderate machinery. They offer a reliable barrier that significantly lowers the risk of noise-induced hearing loss.

• Folding Design for Portability: The "folding" mechanism is the defining feature. It allows the earmuffs to collapse into a compact shape, making them easy to tuck into a tool bag or a tool chest without them being crushed or taking up unnecessary space. This is perfect for when you need to keep them on hand but aren't wearing them continuously.

• Adjustable Fit: The adjustable headband ensures that you can achieve a proper, consistent seal around your ears. Since hearing protection is only as effective as the seal it creates, being able to adjust the tension and height is crucial for both safety and long-term comfort.

• Low Profile: The design is relatively streamlined, which helps prevent them from catching on objects in tight spaces. They are lightweight enough for extended wear, and the soft ear cushions are designed to distribute pressure evenly around the ears, reducing the "pinching" feeling often caused by less ergonomic designs.