How to Use Stethoscopes with Hearing Aids (2025 Guide)

Written by an audiologist with 12+ years of experience helping patients and medical professionals integrate hearing technology into daily life.

Why Stethoscopes and Hearing Aids Can Be Tricky

For healthcare professionals with hearing loss, auscultation is often one of the most difficult tasks. Traditional stethoscopes were never designed to work with hearing aids. Fortunately, today’s digital stethoscopes, Bluetooth® accessories, and direct streaming technology make it possible to listen effectively while keeping your hearing aids in place.

How Each Hearing Aid Manufacturer Connects to a Stethoscope

Phonak Hearing Aids

Phonak uses Bluetooth Classic, allowing many models (Paradise, Lumity, Marvel) to stream directly from smartphones and Bluetooth stethoscopes.

Pair your stethoscope with your smartphone.
Stream auscultation audio directly into your Phonak hearing aids via the myPhonak app.
Recommended stethoscopes:
ThinkLabs One,
Eko Core 500,
3M Littmann CORE.

Oticon Hearing Aids (ConnectClip)

Oticon requires the ConnectClip, which supports both Bluetooth streaming and a 3.5 mm jack input.

Oticon ConnectClip accessory angled view — Oticon ConnectClip – Bluetooth streamer and remote mic with 3.5 mm aux input.

ReSound Hearing Aids (MultiMic)

ReSound users can connect with the ReSound MultiMic. This accessory includes a 3.5 mm line-in jack.

ReSound MultiMic accessory for hearing aids — ReSound MultiMic – clip-on or tabletop mic with mini-jack input for wired sources.

Starkey Hearing Aids (Remote Microphone+)

Starkey offers the Remote Microphone+, which has a 3.5 mm jack for direct audio input.

Starkey Remote Microphone Plus — Starkey Remote Microphone+ – streams line-in or Bluetooth audio to Starkey aids.

Widex Hearing Aids (COM-DEX / FM+DEX)

Widex users can use the COM-DEX, which accepts 3.5 mm audio input via adapter.

Widex COM-DEX pendant streamer — Widex COM-DEX – pendant streamer for calls, media, and wired input via adapter.

Signia / Siemens Hearing Aids (StreamLine Mic)

Signia’s StreamLine Mic provides Bluetooth connectivity and supports line-in for wired sources.

Signia StreamLine Mic product image — Signia StreamLine Mic – remote mic, headset and streamer; accepts wired input.

Recommended Digital Stethoscopes (with Images)

These are popular among clinicians using hearing aids. They support amplification and app connectivity, and can stream or be wired into accessories above.

ThinkLabs One digital stethoscope — **ThinkLabs One** — compact digital chestpiece; outputs via 3.5 mm to headphones or accessories.

Eko Core 500 digital stethoscope — **Eko CORE 500** — digital stethoscope with app integration and powerful amplification.

3M Littmann CORE digital stethoscope — **3M Littmann CORE** — Littmann acoustics plus Eko digital module, streaming and recording via app.

Alternative Option: Amplified Stethoscopes Without Hearing Aids

Some clinicians choose to remove their hearing aids and use a standalone amplified stethoscope instead. These devices bypass hearing aids and directly amplify body sounds.

Summary Table: Manufacturer Accessories

Hearing Aid Brand	Accessory	3.5 mm Input?	Streaming Method
Phonak	N/A (direct Bluetooth)	No	Bluetooth Classic direct
Oticon	ConnectClip	Yes	Bluetooth / wired aux-in
ReSound	MultiMic	Yes	3.5 mm aux-in streaming
Starkey	Remote Microphone+	Yes	3.5 mm aux-in / Bluetooth
Widex	COM-DEX / FM+DEX	Yes (via adapter)	3.5 mm wired / Bluetooth
Signia	StreamLine Mic	Yes	Bluetooth / 3.5 mm wired

Disclaimer

Bluetooth and wired streaming may occasionally drop out or introduce latency. Always test your setup before patient use and have a backup method available. This article is for educational purposes only and should not replace audiological or institutional guidance.

About the Author

Jonathan Javid, AuD, is a clinical audiologist with over 12 years of experience at the Department of Veterans Affairs. He has helped thousands of patients successfully use hearing aids in complex listening environments and publishes expert guides on HearingInsider.com.