Sounds You've Been Missing
Remember how the radio used to sound?
Pick a station. First, hear it the way many people with mild hearing loss do. Then flip the switch and hear it the way Core One Pro brings it back.
Turn your volume up. This is a simulation for illustration, built from generated sounds. It isn't a hearing test, and your own experience will vary.
Hearing doesn't go quiet overnight. It drifts, like a station slipping off the dial.
For most people, the high notes fade first. You can still hear that someone is talking, but the crisp parts of speech slip away, so people seem to mumble. It happens so slowly that most of us don't notice until someone mentions the TV.
- FirstCrickets, birdsong, the clink of a glass
- ThenThe "s," "f" and "th" in a grandchild's voice
- ThenConversations at a busy table, the punchline of a joke

Small enough to hide. Smart enough to tune.
Core One Pro sits inside your ear canal, where nobody can see it. Inside is a hearing-aid chip from Intricon, a U.S. company with 40 years in hearing technology. It brings voices forward, pushes background noise back, and stops the whistling that gives cheap amplifiers away.
Core One Pro · Specifications
- Fits
- Inside the ear canal. Nothing behind the ear
- Weight
- 1.2 grams each, about a paperclip
- Play time
- Up to 20 hours, plus about 80 in the case
- Programs
- 4: everyday, restaurant, outdoors, and a mode that eases ringing in the ears
- Controls
- Volume button on the case. No app, no phone
- For
- Adults with mild to moderate hearing loss
- Price
- $299 the pair. No subscription
From people who tuned back in
"TV volume went from 35 to 18. Finally, I can hear great. Comfortable all day."
Patricia W., verified buyer"They're virtually invisible they're so tiny. I could hear my husband in the next room while he was whispering."
Verified buyer"A $300 OTC device that sounds as good as prescription."
Myron V., verified buyerRated 4.2 out of 5 by more than 500 verified buyers on ceretone.com
- Core One Pro pair + charging case$299
- 4 extra pairs of soft ear tipsFree
- 3-month warranty extensionFree
- Phone appointment with a hearing specialistFree
- Shipping, arrives by next weekFree
Sorry, something went wrong. Please call (866) 283-4262 or order from the product page.
Wear them for up to 100 days. Not hearing better? Send them back for a full refund; we pay the return postage. One payment, nothing renews. HSA and FSA accepted.
Rather call in? Real people in California, Mon–Fri 8am–5pm Pacific
(866) 283-4262
Before you tune in
They sit inside the ear. Only a thin clear removal thread may show, and only if someone looks for it.
No app, no pairing, no prescription. Volume is a button on the case.
It's made for mild to moderate hearing loss. If yours is severe or profound, please see a hearing professional. Not sure? Call us; we'll tell you honestly.
Your brain needs a little time to get used to sounds it hasn't heard in a while. That's why you get 100 days to decide.
