Hearing aids have grown increasingly smaller over the years. Learn about hearing aid size and convenience from anaudiologist in this free health video. Expert: MJ DeSousa Contact: www.listenupcanada.com Bio: MJ DeSousa is Chief Audiologist and one of the founders of ListenUP! and is responsible for staffing and clinical practices, including all Audiology. Filmmaker: Kevin Fletcher … hearing aids loss tests ears middle ear in children signs of auditory system free how to Expert Village …