Speech brought forward, background hushed
Built-in noise reduction lifts the voice you're trying to follow and softens the clatter behind it.
Everhear One
£149.99
Sale price
£149.99
Regular price
£259.99
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The Invisible, Rechargeable Hearing Amplifier for Clear Everyday Conversation. Simple to Use, Ready in Minutes.
£149.99
Sale price
£149.99
Regular price
£259.99
The quiet pullback
Stop nodding along. Start hearing every word.
It creeps in slowly. The TV gets a little louder every year. You ask people to repeat themselves, then stop asking and just nod along instead. You sit a bit quieter at the table because following the chatter is exhausting, so you stop trying.
It's not that you don't care. You're missing half of what's said, and pulling away feels easier than asking "sorry, what?" one more time. You're not alone, and it isn't your fault.
Certus One brings the voices back: your partner, your friends, the person beside you. Invisibly, simply, and without appointments, waiting lists or a four-figure bill.
You've probably tried these already. Here's why they failed:
✕
Turning the TV up (again)
Everyone else in the room gets blasted out while you still miss half the dialogue.
✕
Cheap pharmacy amplifiers
Bulky, whistly, one-volume-fits-all boxes that make every sound louder, not clearer.
✕
Just nodding and hoping
Pretending to follow along is exhausting, and it slowly pulls you out of the conversation altogether.
✓
What actually works: a device built for speech, not just volume
Certus One's ClearVoice™ SpeechLift System lifts the voice in front of you and pushes background noise down, so you hear the words, not the room.
The simple science
Meet the ClearVoice™ SpeechLift System
The 3-stage sound engine built into every pair of Certus One, designed to push speech forward and push noise back.
1
Capture: it picks up every sound
A tiny built-in microphone catches the voices and sounds around you: the conversation, the phone, the TV.
2
SpeechLift: it lifts words above the noise
The ClearVoice™ chip pushes speech to the front and pulls background hum and whistle down, so you hear the words, not the room.
3
Deliver: it hands you the clarity
Clear, comfortable sound goes straight into your ear at the volume you choose. No straining, no “sorry, what?”
Built to support everyday listening: conversation, phone calls and TV. Speech-focused technology, not a gimmick.
Life after Certus
So tiny and invisible, nobody will ever know your secret. For good.
You deserve to feel like yourself in every conversation, not like you're one step behind it.
Ask “what?” a lot less
You catch what was said the first time, instead of guessing or asking someone to repeat it.
Actually join the table talk
Dinners, calls and quiet chats stop being something you sit through and start being something you take part in.
Nobody has to know
At 2g and tucked inside your ear canal, they're yours to mention or not. Most people never notice.
Confidence without the four-figure bill
Clearer everyday listening without appointments or waiting lists.
What to expect
From the first listen to a different daily life
Sound either includes you or quietly leaves you out. Here is what changing that feels like, with 90 days at home to prove it.
First listen
The room gets clearer the moment you put them in
You notice speech separating from background hum within the first few minutes of wear.
Day 1
You stop asking “sorry, what?”
Conversations at normal volume start landing the first time, not the second or third.
Week 1
You stop bowing out of the chatter
Dinners, calls and group conversations feel worth joining again instead of exhausting to follow.
Month 1
You forget you're wearing them
Certus One becomes part of your day instead of a device you think about. Which is the entire point.
Everything you want from a hearing amplifier, nothing you don't
Premium home design
So small, most people won't notice
An invisible-in-canal fit that sits hidden inside your ear, just 2g and smaller than your fingertip.
Rechargeable: zero battery fumbling
Pop them in the pocket case. A full charge lasts 16 hours, with up to 60 total hours of hearing on the go.
No apps. No pairing. No frustration.
We left out the fiddly apps and Bluetooth pairing on purpose. One button sets your volume and mode. Built for people who just want to hear, not manage another gadget.
“Will I actually hear better, or will it just whistle?”
Fair question, most bad amplifier experiences come down to a poor seal and crude processing. Here is the honest answer.
Built-in noise reduction tackles the whistle
Most whistling comes from a poor seal and crude amplifiers. Certus One uses noise-reduction processing and a snug fit to keep the sound clean.
Designed for everyday listening
It lifts everyday speech and sound to a comfortable, clearer level. We are upfront that it is not a medical device, which keeps expectations right.
12 ear tips, including anti-whistling tips
A loose fit is the number-one cause of whistling. Included standard and anti-whistling tips help you find a comfortable, secure seal.
Still unsure?
Wear Certus One at home for 90 days: three months of dinners, calls and TV. If it is not right for you, send it back for a full refund.
What's in the box
Out of the case and into your ears in under 2 minutes
- ✓1 pair of Certus One invisible hearing amplifiers
- ✓Rechargeable portable charging case
- ✓12 comfort ear tips (3 sizes, incl. anti-whistle)
- ✓Cleaning brush & USB-C charging cable
- ✓Large-print, plain-English guide
No confusing apps, no mandatory subscription, no appointments. Charge them, pop them in, and start hearing more clearly the same day.
Technical Specifications
Built for daily useSee full specifications
- Type
- Completely-in-canal (CIC) rechargeable hearing amplifiers, sold as a pair
- Fit
- Invisible in-canal; 2g each (2.3 x 1.2 x 0.9 cm); 12 ear tips (3 sizes)
- Sound control
- Built-in noise reduction; one-button volume and mode with memory recall
- Best for
- Everyday listening: conversation, phone calls and TV
- Battery life
- Up to 16 hours per charge
- Charging
- About 2 hours via USB-C charging case
- Case top-ups
- Up to 60 hours total, recharging the aids about 4 times
- Frequency range
- 290 Hz - 4500 Hz
- In the Box
- 1 pair of aids · charging case · 12 ear tips · cleaning brush · USB-C cable · guide
- Warranty
- 2-year Certus brand guarantee
Still deciding if Certus fits your day?
Will people be able to see them?
Very unlikely. They sit completely inside your ear canal and are virtually invisible. At just 2g and smaller than your fingertip, most people won't notice them at all.
Will they whistle or buzz?
They're built with noise reduction to keep sound clean, and the 12 included ear tips (3 sizes, including anti-whistling tips) let you get a snug seal (a loose seal is the main cause of whistling). Get the fit right and the whistle stays away.
Do I need a phone or an app?
No. Certus One works completely on its own. Just charge, pop them in and set the volume by hand. No app, no Bluetooth pairing, no account.
Are they really rechargeable?
Yes. Charge them in the included case (like wireless earbuds). A full charge lasts up to 16 hours, and the case tops them up about 4 times when you're out, up to 60 hours in total.
Are they suitable for severe hearing loss?
They're designed to support everyday listening situations: conversation, phone, television. They are not medical devices, and for severe hearing difficulties a hearing professional is the right route; we'd rather be honest than oversell.
How is Certus One different from basic amplifiers?
Certus One is a rechargeable in-ear hearing amplifier built for everyday listening. Basic one-volume amplifiers simply make everything louder; Certus's ClearVoice™ processing lifts speech and pushes background noise down, so you hear the words, not the room.
How can it cost so little?
Because we sell directly to your door, with no showrooms, middlemen or fitting fees built into the price. Certus One fits itself with 12 ear tips, and you get 90 days at home to prove it does the job.
How does shipping work?
Orders are processed 7 days a week. Order before 2pm (GMT) and your order is dispatched the same day; orders placed after 2pm are dispatched the next day. Delivery is free, and tracking is provided after dispatch.
What if they're not right for me?
90-day no-questions returns. Send them back for a full refund, no hassle. Covered by a 2-year guarantee.