Vibes Hi-Fidelity Earplugs (made by a Minneapolis company and seen on TV's Shark Tank) are discreet, reusable earplugs designed for sound quality.
Instead of blocking out/muffling sounds, Vibes reduce the volume of loud environments to a safer and more comfortable level that prevents hearing damage (average reduction of 22dB), while still allowing you to hear everything clearly.
Vibes' clear, low-profile design make it easy to be discreet about wearing hearing protection in public.