What Is A Hearing Aid?

A hearing aid is an electroacoustic device designed for hearing-impaired patients. It helps patients use their residual hearing more effectively and improves their communication skills by amplifying sound signals. There are many types and models suitable for patients with different degrees of hearing loss. Before use, it needs to be professionally fitted and followed the correct method of use to achieve a certain effect. Common types of hearing aids include box-type, behind-the-ear and in-the-ear, etc. Each type has its own unique characteristics and applicable scenarios.