Main Features and Uses Sound Insulation Performance: Certified to standards such as the American National Standards Institute (ANSI S3.19), it effectively reduces noise. Uses: In addition to noise reduction, it is widely used for improving concentration during study and work, reducing stress for individuals with auditory hypersensitivity or autism, and protecting children's ears at live events and concerts. Design: Features a free-size design with adjustable size, available in models suitable for children and adults. The ear pads are made of soft material that is comfortable for long periods of wear. The box has some scratches, but the item is brand new and unused. Thank you for looking! ★Brand New, Rare Item★ *Opened for photography purposes. ★Free Shipping★ ★Immediate Purchase and Uninterrupted Purchase OK★ ★First come, first served – only one available★ ★Stored at home and shipped in simple packaging★ Please note that we cannot accept returns or refunds due to customer convenience.