Digital hearing aids are able to automatically adjust the volume. Some noise reduction capabilities, including directional microphones, may be available. Separate memory programs may also be available. These analog hearing aids are programmed to accommodate the pattern of an individual's hearing loss. Some parameters are available for fine-tuning to make the sound quality more appealing to the wearer.
Programmable aids can automatically adjust the volume.
Noise reduction options may be available as well as separate memory functions. These analog hearing aids are designed to supply an appropriate amount of volume for an individual's hearing loss. These aids have volume controls that can be manually adjusted by the hearing aid wearer.