Click the links below to learn more about Fader Plugs
https://www.lvb.com/local-hearing-technology-startup-ready-to-produce-first-product/
https://www.lvb.com/bethlehem-startup-led-by-college-student-wins-prize-worth-110000-in-regional-competition/
https://www.poconorecord.com/news/20170508/esu-student-develops-new-audio-earplugs