Phonak CROS EON
Sends sound from a deaf ear to an Audéo EON R on the better ear
CROS EON R is worn on an ear that cannot benefit from a hearing aid and wirelessly routes sound to an Audéo EON R on the other ear. It has no acoustic output of its own. Paired with EON R it gives StereoZoom 2.0 focus and the full EON connectivity, including Auracast.
- Hearing loss
- Unaidable hearing loss in one ear (CROS and BiCROS)
- Connectivity
- Via the paired Audéo EON R: Bluetooth Classic and Auracast broadcast audio
- Battery
- Up to 20 hours
- Style
- CROS transmitter (receiver-in-canal style)
20h
Battery · rechargeable
2.5h
Charge · full charge
IP68
Water · rated
Who it's good for
Is CROS EON right for you?
Our audiologists' guide to how this model suits different lifestyles, based on its features. Your hearing test results matter most, so we'll always confirm at your appointment.
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Everyday real world
3/5
Restores awareness of sound from the deaf side, which matters most when walking and in cars.
Best for everyday → -
TV turner-uppers
4/5
TV and Auracast audio arrive through the paired EON R, so TV listening matches that device.
Best for TV → -
Golfers and outdoors
4/5
IP68 and a 20 hour battery cope with a round, and hearing partners on the deaf side helps on the course.
Best for golf → -
Socialites
3/5
Hearing voices on the poor side helps at the table, but it cannot add speech clarity to the better ear itself.
Best for social → -
Phone and video calls
5/5
Hands-free calls: the hearing aid microphones pick up your voice, so the phone stays in your pocket.
Best for calls → -
Music lovers
2/5
Routes sound from the deaf side, so stereo music is limited.
Best for music → -
Active and sporty
5/5
IP68 rated against sweat, rain and dust, and up to 20 hours on a charge.
Best for active → -
Tinnitus sufferers
3/5
Tinnitus features vary by technology level, so ask your audiologist.
Best for tinnitus →
The interesting technical bits
What's inside
- Pairs only with Audéo EON R (CROS and BiCROS fittings)
- IP68, 2.4 g, built-in rechargeable battery
- Charges in about 2.5 hours on the Charger RIC E or ChargerGo RIC I E
- CROS balance adjustment
- Auracast and Bluetooth streaming through the paired EON R
About Phonak CROS EON
CROS EON R is worn on an ear that cannot benefit from a hearing aid and wirelessly routes sound to an Audéo EON R on the other ear. It has no acoustic output of its own. Paired with EON R it gives StereoZoom 2.0 focus and the full EON connectivity, including Auracast.
Specifications
From manufacturer information, checked October 2026. Battery figures vary with streaming and settings. Your audiologist will confirm the right receiver, dome and settings at your fitting.
| Brand | Phonak |
|---|---|
| Family | Audéo EON |
| Style | CROS transmitter (receiver-in-canal style) |
| Launched | 2026 |
| Chip / platform | EON / HYPERSONIC chip |
| Hearing loss range | Unaidable hearing loss in one ear (CROS and BiCROS) |
| Power | Lithium-ion rechargeable (built-in) |
| Battery life | Up to 20 hours |
| Battery notes | Phonak states up to 20 hours of battery life when fully charged |
| Full charge | 2.5 hours |
| Quick charge | 1 hour charge gives 55%, 2 hours gives 90% |
| Streaming | Via the paired Audéo EON R: Bluetooth Classic and Auracast broadcast audio |
| Auracast broadcast audio | Yes |
| Water and dust rating | IP68 |
| App | myPhonak |
| AI and smart features | Works with AutoSense OS AI 8.0 on the paired Audéo EON R |
| Available colours | Sand Beige, Sandalwood, Chestnut, Champagne, Silver Grey, Graphite Grey, Velvet Black, Sienna Red |
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Book a free demo of Phonak CROS EON
Programmed to your hearing test results, with free aftercare for life at 11 clinics across Kent & London, or at home.