At their core, hearing aids work by amplifying sound and delivering it into your ear. But there’s more going on under the surface.

A standard digital hearing aid has four main components:

• Microphone – captures sound from the environment
• Amplifier – increases the strength of the sound
• Receiver (or speaker) – sends the sound into your ear
• Battery – powers the entire system

These devices are calibrated based on your hearing test results, ensuring that only the frequencies you struggle to hear are amplified—resulting in a clearer, more natural listening experience.

Hearing aids are made up of several components that can help improve a person's hearing. What do hearing aids look like in detail? Each device consists of microphones, a computer chip, an amplifier, a receiver and a battery.
The microphone detects sound and turns it into a signal, the amplifier increases the volume and the receiver reproduces the sound by sending it to the ear.

Hearing aids can differ in price, size, technology, placement in the ear and visibility.

Customised hearing aids are designed to fit the unique shape of your ear. Using an impression of your ear canal, the device is moulded to match your exact anatomy—providing a secure, comfortable fit and improved sound delivery.

These hearing aids sit fully or partially inside the ear, making them discreet and easy to wear. Because they’re made specifically for you, they’re less likely to move or cause discomfort during daily activities.

Benefits of customised hearing aids include:

• A snug, personalised fit
• Enhanced comfort for long-term wear
• Reduced feedback and better sound quality
• A more discreet appearance

Custom styles include ITE (In-The-Ear), ITC (In-The-Canal), CIC (Completely-In-Canal), and IIC (Invisible-In-Canal) models—each offering varying levels of visibility and power.

At Amplifon Australia, our hearing care professionals can help you explore the best custom fit hearing aid options based on your hearing profile and lifestyle needs.

Artificial intelligence is changing how hearing aids respond to sound. How do AI hearing aids work? AI-powered hearing aids learn from your listening environments and automatically adjust:

• Volume and directionality
• Background noise filtering
• Speech enhancement based on your habits and preferences
• They can even detect falls and track cognitive health in some models.

Many people wonder: how do hearing aids work with tinnitus?

Modern devices can:

• Amplify external sounds, reducing the contrast of tinnitus
• Include built-in sound therapy (e.g., white noise, nature sounds)
• Help reduce stress and focus on external sound cues
• This often leads to improved concentration and reduced awareness of tinnitus over time.

How do hearing aids work for the deaf depends on the level of hearing loss. For individuals with profound hearing loss, traditional hearing aids may not be enough, and cochlear implants may be recommended.

However, for people with residual hearing, powerful hearing aids can amplify remaining sounds and improve communication, especially when paired with lip reading or captioning tools.

Bluetooth hearing aids connect wirelessly to smartphones, TVs, and other devices. But how do Bluetooth hearing aids work?

They use low-energy Bluetooth technology to:

• Stream phone calls and music directly to your hearing aids
• Let you adjust settings via a mobile app
• Connect to multiple devices simultaneously

This gives you better control and clarity in everyday situations.

Whether you're curious about how hearing aids work, or you're having trouble with your device, Amplifon audiologists are here to help.

🔹 Book a free hearing aid consultation at your nearest Amplifon clinic

🔹 Try our hearing aid styles with no obligation

🔹 Get expert support and personalised fittings