Music festivals gave me hearing loss. My best friend and I started making earplugs, and it's now a multimillion-dollar business.
After developing tinnitus and hearing loss, Bob Verlaat cofounded Hears, a company designing stylish earplugs for music fans.
After developing tinnitus and hearing loss, Bob Verlaat cofounded Hears, a company designing stylish earplugs for music fans.
This article was originally published at: https://www.businessinsider.com/hearing-loss-music-festiv...