
Why Is My Hearing Aid Whistling?
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Understanding and Fixing Hearing Aid Feedback Noise
Hearing aids are powerful tools that help improve the quality of life—especially for seniors experiencing age-related hearing loss. But sometimes, users may notice a sharp whistling or squealing sound coming from their device. This sound is called feedback, and while it may be annoying, it’s usually fixable.
Let’s explore what causes this issue and how to stop it.
What Causes Hearing Aid Feedback?
Hearing aid feedback isn’t necessarily a sign of a broken device. Instead, it often means that amplified sound is leaking out of your ear and being picked up again by the microphone—causing a feedback loop.
This is similar to the squealing noise that happens when a microphone is too close to a speaker.
Common causes include:
Poor fit in the ear canal (especially with CIC-style aids)
Earwax buildup reflecting sound
Loose tubing or eartips
Volume set too high
Incorrect insertion or placement
Who Is Most Likely to Experience Feedback?
Anyone can experience feedback, but it’s especially common among seniors. Older adults may unknowingly turn the volume up too high or use devices that don’t fit well.
Low-cost hearing aids without proper feedback suppression features may also be more prone to this problem. That’s why choosing the best hearing aid for seniors means balancing comfort, advanced technology, and affordability.
Step-by-Step: How to Fix Hearing Aid Whistling
Here are some simple troubleshooting steps to reduce or eliminate the noise:

1. Reinsert the Hearing Aid
Make sure the device is inserted snugly and securely. A loose fit is the most common cause of feedback, especially for CIC (Completely-in-Canal) models.
2. Check for Earwax Buildup
Earwax can reflect sound back into the microphone. Keep your ears clean, and consult a professional if needed.
3. Turn the Volume Down Slightly
If the gain is set too high, it can cause feedback. Try lowering the volume to see if it helps.
4. Inspect the Device
For BTE (Behind-the-Ear) models, check for cracks or leaks in the tubing and earpiece connection.
5. Consider Upgrading to a Modern Model
Devices powered by the ON Semiconductor hearing aid chip offer intelligent noise processing and advanced feedback cancellation.
Why Rechargeable Hearing Aids Work Better
Many affordable rechargeable hearing aids today come with built-in feedback suppression systems, eliminating the need for tiny disposable batteries and reducing daily hassle.
For example, the Coniler A-26 features:
✅ ON Semiconductor 16-channel DSP chip
✅ Discreet, in-canal CIC design
✅ Enhanced feedback suppression
✅ USB-C fast charging and extended battery lifeIt’s ideal for mild to moderate hearing loss, and perfect for seniors who value ease, privacy, and performance.
Final Thought: Don’t Ignore the Whistling
That high-pitched sound may be your hearing aid’s way of telling you something. With a simple adjustment or upgrade, you can enjoy clearer, more comfortable sound every day.
Ready to Hear Better?
Visit Coniler to discover affordable rechargeable hearing aids designed for seniors.
Because better hearing is just one smart choice away.