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A hearing aid is an electronic communication tool that helps those with hearing loss listen with greater ease. Though its primary purpose is that of amplification, these devices can be very advanced pieces of equipment. Each device, no matter the style, consists of a few basic parts: a microphone, an amplifier, a receiver/speaker, and a battery. The microphone picks up sound and converts it into an electronic message. The amplifier receives this input, and increases the loudness in a manner specific to your device. Your audiologist will fine tune this amplification for your hearing loss. The receiver is a tiny speaker that changes the amplified signal back into acoustic sounds and sends the sound to the ear. A zinc-air battery powers your device.
