Voices clearer, background quieter
Built-in noise reduction lifts the voice you’re trying to follow and turns down the noise behind it.
Quoted $4,000 to $7,500 a Pair? Get Real Hearing Aids Nobody Can See, for Thousands Less.

“I can finally hear my granddaughter on the phone without saying ‘what?’ every five seconds. The guys at my Tuesday breakfast still haven’t noticed them.”
Ron K. · Dayton, OH
They stopped smiling and nodding and started joining in again.
carol.j.tucson“I drop them in the case on my nightstand, like my phone. No more tiny batteries rolling under the couch.”
jason.m.columbus“Dad’s last pair sat in a drawer for two years. I set these up for him on a Sunday visit, and he hasn’t taken them out since.”
frank.d.scottsdale“I used to go quiet at family dinners and let my wife do the talking. Now I hear the whole table again.”
ron.k.dayton“I hear my granddaughter on the phone clearly now. I quit putting her on speaker. And nobody at church has noticed a thing.”Rated 4.8/5 by 1,638 verified reviews · read their reviews below
It creeps in slowly. The TV goes up a notch every year, then the subtitles go on. At a restaurant, at church or at a family dinner, you catch every third word. So you smile, nod and hope nobody asks you anything.
It’s not that you don’t care. You’re missing half of what’s said, and going quiet feels easier than saying “what?” one more time. You’re not alone, and it isn’t your fault.
Certus One brings the voices back: your spouse, your friends, the grandkids on the phone. No appointment, no sales pitch, and none of the $4,000 to $7,500 an audiologist charges for a pair.

It’s too loud for everyone else in the room, and you still miss half of what’s said.
They whistle, have one volume, and make every sound louder, not clearer. Most end up in a drawer.
Pretending to follow along wears you out. Little by little, you stop joining in.
Certus One’s ClearVoice™ SpeechLift System lifts the voice in front of you and turns background noise down, for a fraction of what an audiologist charges.
The 3-step sound system inside every pair of Certus One. It brings voices forward and pushes noise back.

A tiny built-in microphone catches the voices and sounds around you: the conversation, the phone, the TV.
The ClearVoice™ chip brings speech forward and turns background noise down, so voices come through clearly.
Clear, comfortable sound goes straight into your ear at the volume you choose. No straining, no “what was that?”
A certified OTC hearing aid for mild-to-moderate hearing loss. A real hearing aid, not an amplifier, rated by 1,638 verified buyers.
Feel like yourself again in every conversation, not one step behind.
You catch what was said the first time, instead of guessing or asking someone to repeat it.
Dinners out, phone calls and Sunday dinner with the family are things you join again, not sit through.
At 2g, they sit inside your ear canal. Most people never notice them.
Clearer hearing without appointments, a hard sell or a quote for thousands of dollars.

Here is what changes, step by step. You have 90 days at home to be sure.
Within a few minutes, voices start to stand out from the background noise.
You catch what people say the first time, at normal volume, not the second or third.
Dinners, phone calls and busy restaurants stop wearing you out.
You set them up once and stop thinking about them. They’re just part of your day.

Built-in noise reduction lifts the voice you’re trying to follow and turns down the noise behind it.
They sit hidden inside your ear canal. Each one weighs just 2g and is smaller than your fingertip.
Put them in the charging case overnight. A full charge lasts 16 hours, and the case gives up to 60 hours in total.
No app and no Bluetooth pairing, on purpose. One button sets your volume and mode. Made for people who just want to hear, not manage another gadget.
Fair question. Plenty of people have fought for weeks over a hearing aid refund. Here is exactly how a return works with us.
Wear them for 21 days first, then email us within 90 days of delivery. A real person replies, 7 days a week. No phone interview, no video call.
Whistling or low sound is usually the ear tip. We suggest one quick fix by email. If they still aren’t right, we send you the return address.
Mail them back with tracking. You pay the return shipping. We refund you within 14 days of getting them back, with no restocking fee.
Read the verified reviews below first. Pay by card, Apple Pay or Google Pay through a secure checkout. Then wear Certus One at home for 90 days. If they’re not right for you, send them back for a full refund.
Megan has fitted prescription hearing aids in hearing clinics for years. Certus One is the first affordable OTC pair she tells her own patients to try.
“Every week a patient shows me a cheap pair from an ad that just made everything louder. The question is always the same: does it make speech clearer, or the whole room louder? Certus One’s ClearVoice system makes speech clearer. And because nobody can see them, people actually wear them every day.”

Medicare doesn’t cover hearing aids. Medicare Advantage plans pay only through their network. So most people pay one of three very different prices.
A hearing test, fittings and follow-up visits, often with a hard sell. The right choice for severe or complex hearing loss. A very big bill for mild-to-moderate loss.
Good value and well liked, if you have a membership, live near a Costco and have time for the test and fitting visits. Plenty of people don’t.
A certified OTC hearing aid for mild-to-moderate loss. No membership, no appointment, no network. Free shipping, and set up in 2 minutes. You can pay with your HSA or FSA card.
90-day money-back · 2-year warranty · Free US shipping · HSA/FSA eligible*Based on 1,638 verified reviews.
and say they would choose Certus One again.
in their first week of wearing them.
instead of an audiologist pair that costs thousands more.
Based on 1,638 reviews
Every review here was left by someone who bought Certus One. Bad reviews are never edited or removed.
Certus One in real life
I live alone. Since I got these I've heard a smoke detector chirping that had a dead battery, a tornado siren in April that I'd previously been relying on my neighbor to tell me about, water running upstairs from a toilet that wouldnt shut off, and somebody knocking on my front door who'd been standing there long enough to give up. My daughter calls me once a day now instead of three times.
I thought they'd be visible. Nobody has noticed in five months and I wear my hair short. I thought there'd be batteries and there aren't any, the case handles it overnight. I thought I'd need my grandson to set them up and there's nothing to set up, it's one button. I thought the sound would be tinny like the amplifier I bought years ago and it isn't, it's clearer rather than just louder. The only thing I got right is that a loud room is still a loud room.
My daughter ordered them for me six weeks before the wedding because she was tired of me missing things. I'll be honest, I only put them in that morning to keep the peace. I heard the vows, I heard the best man, and I heard my brother's toast, which I would have missed entirely. In at ten in the morning, out at midnight, and my ears were fine the whole day.
Here's the honest breakdown after four months. At home, excellent. On the phone, excellent, better than I expected since there's nothing to connect. In the car, good. One on one anywhere quiet, good. A crowded restaurant on a Friday night, they help but I'm still watching faces. If you go in expecting the last one to be solved you'll be disappointed.
He'd been getting quieter for about three years and I didn't put it together. He stopped going to the Elks with his brother, then he stopped calling his sister in Florida, then at Thanksgiving he sat at the end of the table and said maybe ten words all afternoon. He isn't a man who discusses things. I ordered these and left them on his dresser with the card. He said nothing for two days and then he was wearing them. Last week he called his sister and they talked for an hour and a half.
I ordered these fully expecting to return them inside a week. I'd bought a cheap amplifier off television in 2019 that squealed every time I turned my head and made every refrigerator in the house sound like a diesel engine. My expectation was more of the same at a slightly higher price. What I got instead was something that brings speech forward and leaves the rest of the room roughly where it is. I dont know how they do that and I've stopped caring.
No app, no account, no appointment. Three simple steps, easy enough to set up for Mom or Dad in one visit.
Charge the hearing aids in the case with the included USB-C cable until the lights show full.
Choose the soft ear tip that fits best and gently press a hearing aid into each ear.
Set the volume to a comfortable level. That’s it.

No app, no subscription, no appointment. Charge them, put them in, and start hearing more clearly the same day.
For people tired of nodding along, and for families who want Mom or Dad back in the conversation.
Order today and wear them at home for up to 90 days: at the dinner table, on the phone, in front of the TV. If they’re not right for you, email us within 90 days and send them back for a full refund. No phone interview, no video call, no restocking fee.
Yes. Email us within 90 days of delivery and tell us in a line or two what isn’t working. Please wear them for at least 21 days first, unless they’re faulty or hurt. Ears take a little time to get used to hearing aids. We suggest one quick fix by email, usually a different ear tip. If they still aren’t right, we send you the return address. You mail them back with tracking and pay the return shipping. We refund your payment within 14 days of getting them back. No phone interview, no video call, no restocking fee.
A real hearing aid. Certus One is a certified OTC (over-the-counter) hearing aid for adults with mild-to-moderate hearing loss. Cheap $99 “sound amplifiers” from ads just make everything louder. Certus One’s ClearVoice™ system lifts speech and turns background noise down, so voices come through clearly.
Very unlikely. They sit completely inside your ear canal. At just 2g and smaller than your fingertip, most people won’t notice them at all.
That’s exactly who Certus One is made for. There is one button, no app, no phone and nothing to pair. They charge in the case overnight, like a phone, and the large-print guide walks through the three setup steps. Set them up once on your next visit, and they’re ready every morning after that.
Not once the fit is right. A loose seal is the main cause of whistling. The 12 ear tips in the box (3 sizes, including anti-whistle tips) help you get a snug seal, and built-in noise reduction keeps the sound clean.
No. Certus One works completely on its own. Just charge them, put them in and set the volume with the button. No app, no Bluetooth pairing, no account.
AirPods are a fair first try, and many people start there. But they are made for music first, they need a phone, and everyone can see them in your ears. Certus One is made for hearing first. It lasts 16 hours on a charge, sits out of sight inside your ear, and needs no phone at all.
Yes. Charge them in the included case, like wireless earbuds. A full charge lasts up to 16 hours, and the case recharges them about 4 times on the go, up to 60 hours in total.
No. They’re made for mild-to-moderate hearing loss and everyday situations: conversation, the phone, the TV. For severe or profound loss, see an audiologist for hearing aids fitted to your hearing test.
Because most of that price pays for the office, not the hearing aids: the rent, the appointments, the fitting fees and the sales staff. Certus One ships straight to your door with 12 ear tips to get the fit right, and you get 90 days at home to be sure it does the job.
Yes, by a lot. Costco hearing aids cost about $1,400 to $1,800 a pair, plus the membership, the drive to the store and the test and fitting visits. Certus One needs none of that, and it ships free to your door. Costco is still a good choice if your loss is severe or you want an in-person fitting.
Medicare doesn’t cover hearing aids. Medicare Advantage plans with a hearing benefit pay only through their own network. But Certus One is HSA/FSA eligible, and no doctor’s note is needed. You can pay with your HSA or FSA card at checkout. We email an itemized receipt for your HSA or FSA with every order.
Yes. Fresh ear tips, wax caps and brushes are sold right here as the Care Kit. A real person answers email 7 days a week. Every pair has a 2-year warranty against faults, and you can add a Lifetime Warranty at checkout. Certus One needs no app, so there is no app that can ever be switched off.
Shipping is free on every order, fully tracked and insured, to any US address. We email your tracking link as soon as your order ships.
Wear them at home in everyday life. If they’re not right for you, email us and send them back for a refund. 1,638 verified customers have already reviewed them.
Quoted $4,000 to $7,500 a Pair? Get Real Hearing Aids Nobody Can See, for Thousands Less.

“I can finally hear my granddaughter on the phone without saying ‘what?’ every five seconds. The guys at my Tuesday breakfast still haven’t noticed them.”
Ron K. · Dayton, OH