(untitled) - The Hearing Collective. Hearing Collective Services 2018. Accessed May 15, 2023 at:
[See also: Penno, Kat. “Wow Woman in Wearabletech: Kathryn 'Kat' Penno, Founder and Audiologist at Hearing Collective.” edited by Marija Butkovic. Women of Wearables, 2020. Accessed May 20, 2020 at: https://www.womenofwearables.com/new-blog/wow-woman-in-wearable-tech-kathryn-penno-hearing-collective]