AOSafety 90540 Economy Ear Protective Earmuff. Lightweight and durable. Features an adjustable headband for a perfect fit. The soft foam cushions provide unparalleled comfort, while the multiple wearing positions allow for versatility. With an NRR of 20dB, it effectively protects against noise levels at or above 85 decibels. This ear muff offers a budget-friendly option without sacrificing comfort and quality. The soft foam cushions ensure all-day comfort and a Noise Reduction Rating of 20 decibels. Easily adjustable to fit your needs in any position.