If you wear a behind-the-ear hearing aid (BTE), you also have an earmold or an ear tip. Earmoulds for behind-the-ear hearing aids are essential parts of hearing aids. The design of these will greatly affect your comfort because the sound of your hearing aid reproduces is influenced by the shape of these moulds.
The earmould's main purpose is to conduct sound from a behind-the-ear (BTE) hearing aid into your ear. It also helps ensure that the hearing aid rests securely on your ear. A well-fitting earmold helps prevent feedback whistling from the hearing aid by preventing sound leakage. It is important that the earmoulds tube to the hearing aid is of the correct length and is clean, unbroken, and soft. If the tube is too short, you may feel an uncomfortable pull on the earmold. If it is too long, it will be difficult to keep the hearing aid in place behind the ear.