Clarity that speaks for itself.
Phonak Audéo™ EON
Sphere.
● AI/PRISM™ 4.0 CHIP ● ANY DIRECTION* ● UNIVERSAL CONNECTIVITY
Imagine walking into a noisy situation with confidence, knowing you'll be able to keep up with the conversation. The unique, patented AI technology in EON Sphere reduces distractions from all around¹ in real-time. Hear the voices that matter most with less listening effort.²
- Exclusively featuring Spheric Speech Clarity™ 3.0 for all-around clarity
- Smaller, discreet design stays comfortable all day
- Connect to virtually any Bluetooth® enabled device to easily stream calls, music, and TV audio
- Access Auracast™ broadcast audio in supported public and shared spaces directly through your hearing aids
- Easier care with Phonak EasyGuard™ domes, so you spend less time cleaning and more time living
- Recharge and go with up to 38 hours of battery life*
Clarity that moves with you, automatically
Forget you're wearing hearing aids. Remember the moments of life. Powered by Phonak AI, Audéo EON Sphere exclusively features Spheric Speech Clarity 3.0, which instantly separates speech from background noise in real time, so you hear the voices that matter.2
Backed by Phonak AI and made for living, they offer our most natural sound available.⁵ The smaller, comfortable design is powerful beyond belief and redefines what a hearing aid can do for you.
37 %
more efficient** - smaller than ever. Powerful beyond belief.
25 %
smaller*** - sleek, discreet design
38 h %
up to 38 hours battery life made to last all day****
20 %
lighter*** - comfortable, all day wear
Our most natural sound available
WindBlock 2.0 automatically reduces wind noise, contributing to our most natural sound available.5 This advanced technology cuts out disruptive wind sounds, helping you enjoy clearer speech and the sounds of nature around you.6
Sphere hearing aids keep you connected
Connect to the sounds that matter. Phonak EON Made For All connectivity lets you stream music, take calls, and connect to Auracast™ broadcast audio directly through your hearing aids. Easily connect your smartphone or other Bluetooth® enabled devices with a few taps and enjoy seamless listening.
Experience the front row with Auracast™ broadcast audio. Auracast™ broadcast audio is found in places like theaters, museums, lecture halls and gyms. It lets you stream performances, tour guidance and announcements directly to your hearing aids.
Hear clearly wherever life takes you
Phonak Audéo™ EON Sphere hearing aids are made to fit naturally into your life with a small, lightweight design that feels effortless all day. These sleek devices are built for all-day comfort and convenience, with Phonak AI working quietly in the background so you can focus on what matters.
Designed for easy maintenance
Hearing aid care has never been easier, thanks to EasyGuard™ domes, which protect your hearing aids from earwax and make maintenance simpler.7
EasyGuard features a sealed design that helps prevent earwax from entering the hearing aid receiver while allowing sound to pass through. This provides easier care and more consistent performance.
Charge your way
Charging options made for wherever life takes you. Choose the charger that fits your lifestyle, from convenient at-home charging to portable power on the go.
Fully charged, Audéo EON Sphere provides up to 38 hours of battery life.***
Want to see if Phonak hearing aids are right for you?
Frequently asked questions
What is Phonak Audéo EON Sphere?
Audéo EON Sphere is an AI-powered receiver-in-canal (RIC) hearing aid for mild to profound hearing loss. It runs on the HYPERSONIC AI chip with exclusive Spheric Speech Clarity 3.0..
How does Spheric Speech Clarity 3.0 work?
Spheric Speech Clarity 3.0 instantly separates speech from background noise in real time, so you hear the voices that matter. It is exclusive to Phonak Audéo EON Sphere and runs on the HYPERSONIC AI chip
What is the difference between Phonak Audéo EON Sphere and Audéo EON R?
Audéo EON Sphere adds Spheric Speech Clarity 3.0, which separates speech from background noise in real time. Audéo EON R uses AutoSense OS AI 8.0 to adapt automatically to changing sound environments. Both are rechargeable RIC hearing aids with Auracast broadcast audio.
How long does the Audéo EON Sphere battery last?
Audéo EON Sphere provides up to 38 hours of battery life**** on a full charge. Charging options include Charger RIC and Charger Go. Runtime varies with battery condition, hearing loss, environment, streaming and features used.
Is Audéo EON Sphere smaller than earlier Phonak Sphere hearing aids?
Yes. Audéo EON Sphere is 25% smaller and 20% lighter than the previous generation***. Its discreet design stays comfortable all day and comes in 8 colors.
What is Phonak Audéo EON Sphere?
Audéo EON Sphere is an AI-powered receiver-in-canal (RIC) hearing aid for mild to profound hearing loss. It runs on the HYPERSONIC AI chip with exclusive Spheric Speech Clarity 3.0..
* The maximum battery runtime is determined by battery condition, hearing loss, environmental sound classification, streaming usage and activated feature set.
** While running SSC 3.0, compared to Phonak Infinio while running SSC 2.0
*** Compared to the previous Sphere generation
**** The maximum battery runtime is determined by battery condition, hearing loss, environmental sound classification, streaming usage and activated feature set.
1. Wright, A., Kuehnel, V., Keller, M., Latzel, M. (2024). Spheric Speech Clarity DNN signal processing to significantly improve speech understanding from any direction and reduce the listening effort. Phonak Field Study News retrieved from www.phonak.com/evidence
2. Raufer, S., Kohlhauer, P., Jehle, F., Kühnel, V., Preuss, M., Hielscher, M. (2024). Spheric Speech Clarity proven to out-perform three key competitors for clear speech in noise. Phonak Field Study News retrieved from www.phonak.com/evidence
3. Habicht et al. (2024). Phonak Audéo EON Sphere outperforms four other hearing aids for clear speech in loud noise. Phonak Insight retrieved from www.phonak.com/evidence
4. With hearing aids using SSC compared to hearing aids using the same settings without SSC. Wright, A., Kuehnel, V., Keller, M., Latzel, M. (2024). Spheric Speech Clarity DNN signal processing to significantly improve speech understanding from any direction and reduce the listening effort. Phonak Field Study News retrieved from www.phonak.com/evidence
5. Compared to Directional (CD), adults with moderate to severe hearing loss. Tian, E. et al. (2023). Spheric Speech Clarity significantly improves speech understanding in a multi-talker scenario and reduces listening effort with Mandarin speakers. Phonak Field Study News. Retrieved from www.phonak.com/evidence
6. WindBlock 2.0 versus previous generation, subjects with mild to moderate-severe hearing loss. Vaisberg, J., Brunner, J. & Mirkovic, B. (2019). Hearing complexity in wind: WindBlock 2.0 delivers comfort, natural sound quality and cleaner speech. Phonak Field Study News retrieved from www.phonak.com/evidence
7. Compared to WindBlock 2.0 off. Latzel, M., & Appleton, J. (2020). Evaluating outdoor communication: WindBlock 2.0 reduces wind noise by up to 10 dB. Phonak Insight, retrieved from www.phonak.com/evidence.
8. Based on Sonova internal data. Contact [email protected] if you are interested in more information.
The Auracast™ word mark and logos are trademarks owned by Bluetooth SIG, Inc. Any use of such marks by Sonova AG is under license.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. Any use of such marks by Sonova AG is under license.
2601 Little Elm Pkwy #2203 Little Elm, TX 75068
Ready to schedule your visit?
© Copyright 2026. Site designed and maintained by Ear Level Marketing
