The Sennheiser SoundProtex and SoundProtex Plus are high-fidelity hearing protection earplugs designed to safeguard your ears without compromising sound quality. Ideal for concerts, festivals, travel, and various noisy environments, they ensure you can enjoy clear audio while reducing harmful noise levels. Hearing protection earplugs. Two-stage SoundProtex filters. Medical-grade TPE ear tips in 3 sizes (S/M/L). 1 pair full block filter, 1 pair acoustic filter (mid), pouch bag included.