Michael Duguay opened the doors of Microtone Hearing Aid Center on April 1, 1983 in Napa, California. Comprehensive patient care and education was at the heart of the business from the very first day. Michael Duguay always went the extra mile, from making house calls to patients in need, to implementing the lifetime service guarantee for the life of every hearing aid sold by Microtone. His commitment was to the complete wellness of his patients, and when he retired in 2011, his sons Brian and Joel Duguay took the reins of the family business with this commitment intact. Patient care and education is the heart of Microtone.