To improve your listening experience, it is important to take your audio system into consideration: In fact, all hearing aids contain a small integrated sound system designed to amplify and enhance environmental sounds to help people with hearing loss hear better. The audio system is generally composed of: a microphone to capture surrounding sounds an amplifier to increase the volume of sounds a speaker to transmit amplified sounds into the user's ear. We should point out that modern hearing aids also often include advanced technologies to further improve the user's hearing experience, including but not limited to: noise reduction personalisation.