There are various types of hearing aids. According to different classification standards, there are mainly the following types:
Classification by appearance:
Box-type hearing aid: Large in size, can be hung on the chest or placed in a pocket, relatively cheap, simple to operate, but not very beautiful and inconvenient to carry.
Behind-the-ear hearing aid: Hanging behind the ear, transmits sound into the ear canal through earplugs or ear molds, with high power, suitable for various degrees of hearing loss, compact and comfortable to wear.
Customized hearing aid: Customized according to the shape of the individual ear canal, divided into in-ear, ear canal and deep ear canal, etc., with good concealment, high aesthetics and comfortable to wear, but relatively high in price, usually low in power, not suitable for people with severe hearing loss.
Desktop hearing aid: Generally large in size, suitable for use in a fixed position at home.
Glass-type hearing aid: Combined with glasses, suitable for people with hearing loss who also need to wear glasses.
Cross-linked hearing aids: Usually worn on both ears, achieve bilateral cooperation through wireless connection, and provide a better hearing experience.
Classification by sound wave conduction pathway:
Bone conduction hearing aids: Transmit sound to the inner ear through skull vibration, independent of the external auditory canal and middle ear, suitable for patients with external auditory canal malformation, otitis media, etc. who cannot use traditional hearing aids.
Air conduction hearing aids: Transmit sound to the inner ear through the external auditory canal and middle ear, which is a common type of hearing aid.
Classification by use distance:
FM hearing aids: Usually used for long-distance hearing assistance.
Infrared hearing aids: Use infrared technology to transmit sound signals, suitable for hearing assistance in specific scenarios.
Frequency shifting hearing aids: Shift sound signals from one frequency range to another to adapt to the hearing characteristics of people with hearing loss.