Hearing aid is a device which is worn by people with hearing disabilities. It is an amplification device. It helps people with hearing loss to hear better. There are a lot of different types f hearing aids. There are: Body worn aids, Behind the ear aids, In the ear aid, Invisible in canal hearing aids, Extended wear hearing aids, Open-fit devices, Personal, user, self, or consumer programmable, Disposable hearing aids, Bone anchored hearing aids, Eyeglass aids and Stethoscope hearing aid.
Body worn aids were the first type of hearing aids to be invented. It consists of a case and an ear mold. The case is placed around the belt and is attached with a wire to the mold. It contains an amplifier, controls and a battery. Behind the ears hearing aid consists of a case, ear mold and a connection between them. The case is usually paced behind the ear. In the ear aids are placed inside the ear shell. They are normally not visible, but when you stand face to face with someone. They are custom made, and are only made for milder hear losses, not severe. Invisible in the canal aid fit inside of the ear completely and are not visible even when someone looks directly into your ear. Because of their placement they give a more natural feeling, but they are not recommended to people with frequent ear infections and are not suited for older people. Extended wear aids are placed inside of the ear by an expert, but not surgically. It is worn for around 3 months without removing it, and it is one of the invisible types of hearing aids. Open fit aids the type of aids who are small and fit behind the ear. The personal programmable, consumer programmable, consumer adjustable, or self programmable hearing aid allows the consumer to adjust their own hearing aid settings to their own preference using their own PC. Disposable aids don’t have batteries, so after the battery is worn out the aid is of no longer use and can be disposed. Bone anchored aids are surgically implanted. Eyeglasses aids were modern in the 1960s. People who needed both hearing and seeing aid used this type of aid. The hearing aid was installed into the temple peace of the glasses.