Custom hearing aids just means that the all the technology of the hearing aid is built into a custom-made shell that fits the patient’s ear perfectly. It does not have anything behind the patient’s ear (like BTE hearing aids have). These types of hearing aids are not always viable as the size of the patient’s ear canal plays a critical role when deciding on this option. Should the patient’s ear canal change for some reason, such as age or due to operations, the mould might not fit precisely anymore and would have to be remade. 

Some of the options in the custom range include: