The 3 parts that are in all hearing aids would be a microphone, a sound amplifier, and a speaker. Some features would include feedback management, wind noise reduction, impulse noise reduction, digital noise reduction, and direction microphone systems. Some features would include feedback management, wind noise reduction, impulse noise reduction, digital noise reduction, and direction microphone systems.

Most people have ear buds when they want to listen to music or watch a video or a movie. Have you ever taken a closer look inside these little buds? If not, you'll finally see what is inside them and have a better idea of how they work.