Earplugs TRIZ Cases
- Adjustable Earplug Acoustics for Variable Noise Damping
Switchable acoustic couplings let one earplug move between high and low damping while preserving sound quality across changing noise conditions.
- Dual-Polymer Ear Plug Structure for Comfort and Secure Fit
A hard substrate with a soft silicone covering improves ear plug comfort while preserving secure fit and easy ear tip assembly.
- Electro-Acoustic Earplug Noise Dosimetry With Source Separation
Inner and outer ear microphones with adaptive filters separate ambient noise, playback, and wearer disturbances for accurate in-ear noise dose tracking.