Hearing Collective Services. The Hearing Collective © - The Hearing Collective (2018)
. Accessed March 13, 2021 at: https://www.hearingcollective.com/services [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]