Technology and lifestyle affect your choice
Hearing aid sizes range from completely in the ear (ITE) to behind the ear (BTE).
Due to wear and tear, exposure to cerumen and the temperature in the ear canal, ITE aids usually perform for 3-5 years. BTE hearing aids last longer needing minor modifications due to the ear growing slightly over time. Technology and multiple microphones have improved a patient’s ability to localize and lateralize multiple sound sources in any size of hearing aid. This makes selecting the size more of a cosmetic decision, than aerodynamic need to place the microphone at the point of the concha.
The level of technology depends on the patient’s hearing loss, listening needs, situation, and expectations
Even ten years ago most hearing aids were simply analog. If the single microphone received a sound, whether speech or the refrigerator running the hearing aid amplified it and created the complaint that hearing aids are “noisy”. When a patient has an active lifestyle with even moderately challenging listening situations, they perform better with more advanced technology. It provides them with higher fidelity, a multiple band signal processing system, multi-channel compression and other features for a comfortable, pleasant listening experience.