Founded in New York City in 2012, 1of1 Custom makes precision-molded hearing protection and in-ear audio systems for musicians, DJs, performers, and everyday listeners. The company’s custom-fit designs aim to reduce harmful sound while preserving clarity, and its products are handcrafted in the USA for use on stage, in studios, and at home. With tens of thousands of custom fits delivered worldwide, 1of1 Custom has expanded from its New York roots to locations in the San Francisco Bay Area and Nashville.