A hearing aid dome is a cap that covers the speaker unit, and your audiologist would have determined the correct size for your ear canal. Choosing the correct size for your aid is essential when it comes to hearing aid domes, as they help ensure that your hearing aids fit comfortably within your ear. This also means they reduce irritation and movement as well as helping your hearing aid reproduce sound as accurately as possible. Over time, hearing aid tubes become brittle and can crack, causing feedback sounds to occur from the hearing aid. Replace the tubing on a regular basis to prevent this. Order extra tubing from our selection below to save yourself a trip to the audiology clinic and learn to change the tubing at home.