The Sennheiser SoundProtex Plus earplugs offer top-notch hearing protection designed for concertgoers, travelers, and professionals in noisy environments. Combining advanced acoustic filters with superior comfort, these earplugs allow you to enjoy clear audio while safeguarding your hearing. Hearing protection earplugs. Two-stage SoundProtex filters. Medical-grade TPE ear tips in 3 sizes (S/M/L). 1 pair full block filter, 3 pair acoustic filter (low/mid/high), pouch bag included.