- RUGGED AND SOUNDPROOF: Constructed with durable ABS housing and thick sound-absorbing cotton, these earmuffs offer a Noise Reduction Rating (NRR) of 28dB, ensuring effective noise insulation for various environments. - COMPACT AND PORTABLE: These noise-canceling headphones easily fold up, allowing for convenient storage in a backpack or briefcase, making them an ideal choice for travel or daily commutes. - FLEXIBLE AND ADJUSTABLE: Featuring an adjustable headband and 360-degree rotatable earmuffs with soft foam padding, these earmuffs can be tailored to fit all head sizes, from children to adults. Simply pull or push the earmuffs along the metal cord for a customized fit. - FUNCTIONALITY AND BENEFITS: Regular exposure to noise levels exceeding 85dBA can lead to serious health issues, including permanent hearing loss, tinnitus, high blood pressure, anxiety, sleep disorders, and fatigue. Our hearing earmuffs are designed to mitigate these risks, providing a comfortable and effective solution for hearing protection. - USE SCENARIOS: Ideal for use at concerts, construction sites, or during noisy home improvement projects, these earmuffs help protect your hearing while enhancing your overall well-being. Perfect for audiophiles and professionals alike who need to focus in noisy environments. Experience superior sound insulation and comfort with these essential earmuffs designed for everyday use and serious noise reduction.