Reusable earplugs that protect sound quality and allow for volume adjustment. - Brand: Sennheiser - Product Name: SoundProtex - Features: Sound quality protection, adjustable volume - Reusability: Can be wiped clean and reused - Filter Types: Mid filter, full block filter I mistakenly purchased these online and have opened the package and handled them slightly, so please understand that these are used items. Thank you for looking.