Discreet hearing aids fit deep in the ear canal are known as invisible-in-the-canal.

Invisible hearing aid Considering their tiny size, invisible hearing aid pack a lot of technology into something the size of a candy corn.

Invisible hearing aids inside contains: Microphone for picking up sound

Invisible hearing aids inside contains: Microprocessor to process the sound

Invisible hearing aids inside contains: Amplifier and speaker to deliver the sound

Invisible hearing aids inside contains: Removable battery, usually not rechargeable.

Invisible hearing aids outside contains: Most brands offer IIC hearing aids with shells (the exterior) in different skin tones, to enhance the invisibility of the devices.

Invisible hearing aids outside contains: Some may have a push-button to let you change the volume, change the setting or mute the devices.

Invisible hearing aids outside contains: There is also an "on/off" switch and a vent to let air through, and sometimes a pull-out string.

Invisible-in-the-canal" (IIC) Invisible hearing aid, known medically as an "invisible-in-the-canal" (IIC) hearing aid.