Hear Every Phone Call in Both Ears, With No Speakerphone. Music Too. Sits Behind the Ear, So It Fits Small Ears. No Clinic, No Waiting List.
Sale price£349.99Regular price£699.99Save £350Pay in 3 interest-free payments of £116.66 with Klarna.
The Certified Bluetooth Hearing Aid for Calls and Music
Take calls in both ears, no speakerphoneTouchscreen case shows both volumes at a glanceSits behind the ear: fits small ear canalsUp to 15 hours a day, about 5 hours of calls
How many pairs?One pair covers both ears
1 Pair£349.99£699.99
Best value2 Pairs£559.99£1,399.98For a partner, or for both parents: the second pair is £210.00, not £349.99.
Price will go back to normal in --:--
90-Day Money-Back GuaranteeFast UK Delivery
SELLING OUT FAST
Due to high demand, limited stock in the UK warehouse
87% SOLD
The Certus 90-Day Hear-Every-Call GuaranteeWear them for three months: calls with the family, the GP ringing back, meals out, the radio on a walk. If calls are not clearer in both ears, send them back for a full refund. Simple returns, no restocking fee.
★★★★★Verified Customer
“My wife has done my phone calls for about ten years. She would take the handset, have the conversation, then tell me what was said. Since July she has not had to do it once.”
Ewan M · Verified Customer
Calls in both earsMusic and audiobooks tooTouchscreen caseFits small ear canalsUp to 15h a day90-day home trial2-year guarantee
Calls in both earsMusic and audiobooks tooTouchscreen caseFits small ear canalsUp to 15h a day90-day home trial2-year guarantee
Calls in both earsMusic and audiobooks tooTouchscreen caseFits small ear canalsUp to 15h a day90-day home trial2-year guarantee
Calls in both earsMusic and audiobooks tooTouchscreen caseFits small ear canalsUp to 15h a day90-day home trial2-year guarantee
Real people. Back on the phone.
Calls in both ears, the touchscreen case, and how it really sits behind the ear.
Swipe to see more
annem.1958“My daughter rang and her voice was in both ears. No speakerphone, no phone pressed to the side of my head.”geoff.harding“I expected a huge plastic thing behind my ear. It’s a little silver body and a clear wire, nobody has said a word.”sandra.k.newcastle“Both volumes sit on the lid of the case. I change them there instead of hunting for my phone.”raymond.t.1954“I used to dread the phone ringing. Now I answer it with my hands full and carry on with what I was doing.”
You press it hard against your ear, then switch to speaker and turn it right up. You still miss the name, the time, the number. Then you ring off and guess at what was said.
Face to face you can lip-read and fill the gaps. On the phone there is nothing to read. So you let calls go to voicemail, you ask someone else to ring the surgery, and the family video call becomes a lot of smiling and nodding.
Certus Max puts the call inside both ears. Your phone sends the voice straight to your hearing aids over Bluetooth, clear in both ears, with no speakerphone and no phone pressed to your head.
You’ve probably tried these already. Here’s why they failed:
✕
Speakerphone, turned right up
The whole room hears your call, and the words still blur together.
✕
Cheap “Bluetooth” amplifiers off Amazon
They say “Bluetooth” on the box but only pair to an app, or whistle and hiss the moment you hold a phone near them.
✕
Tiny in-ear aids that won’t stay put
If your ear canals are small, in-ear aids pinch, work loose and fall out. Most end up in a drawer.
✓
What actually works: calls streamed into both ears
Certus Max pairs with your phone like earbuds. Calls, music and videos go straight into both hearing aids, and it sits behind the ear, so it fits ears that in-ear aids don’t.
How it works
How Certus Max puts the call in both ears
A digital hearing aid with Bluetooth built in. Its chip splits sound into 32 bands, so it can lift voices and keep the clatter down. One pair does two jobs: clearer conversation in the room, and calls and music from your phone.
1
Hear: the room, clearer
Microphones behind each ear pick up the voices around you. The 32-channel chip lifts speech and turns background noise down.
2
Pair: once, like earbuds
Pair Certus Max with your phone over Bluetooth once. After that it connects by itself when you lift the aids out of the case.
3
Stream: calls and music, both ears
Phone calls, video calls, music, podcasts and audiobooks play straight into both hearing aids, through the soft dome in each ear.
A certified hearing aid for mild-to-moderate hearing loss, with Bluetooth calls and music built in. Real hearing aid technology, not a gimmick.
Life after Certus
Pick up the phone without thinking twice. Every call.
Calls you used to dodge become calls you look forward to again.
Calls in both ears
The voice plays inside both ears at once, so you hear every word without speakerphone or pressing the phone to your head.
The family, face to face
Video calls with the grandchildren come through clearly, so you join in instead of nodding along.
Music and audiobooks on the move
Your playlist, the radio app or an audiobook on a walk, in the car, or while you cook. Up to about 6 hours of music.
Clearer in the room too
When the phone is down, Certus Max works as a hearing aid all day: up to 15 hours of clearer conversation.
What to expect
From the first call to a different daily life
Here is what it feels like, with 90 days to prove it risk-free.
Day 1
Pair once, take a call
Pick a dome size, pair with your phone, run the five-minute hearing check, and ring someone. Their voice is in both ears.
Week 1
You stop letting it ring
The GP rings back, your daughter calls, the grandchildren FaceTime, and you hear all of it. You stop waiting for someone else to make the call.
Week 2
The wire disappears
The thin wire and the small body behind the ear stop feeling new. Most days you forget they are there.
Month 1
Music comes back into your day
Audiobooks on a walk, the radio while you cook, a song in both ears. Clearer conversations around you in between.
Everything you want from a Bluetooth hearing aid
Calls · Music · Every word
Calls and music in both ears
Pairs with your phone like earbuds. Phone calls, video calls, music, podcasts and audiobooks play straight into both hearing aids.
A touchscreen on the case
See the left and right volume, the mode and the battery on the case. Change the volume and mode right there, no phone needed.
Fits small ear canals
The body sits behind the ear and only a soft dome goes in the ear. Five dome sizes in the box, so it fits ears that in-ear aids don’t.
Up to 15 hours a day
Up to 15 hours of hearing, or about 5 hours of calls or 6 hours of music. The case refills the aids 4 to 5 times.
Independent product review
An audiologist on Certus Max
An audiologist who fits hearing aids in clinic looked at Certus Max for people who struggle with phone calls.
On the phone there is no face to read. That is why calls go first.
“Most people cope face to face long after the phone has become hard work. There is no face to read on a call, so the phone is where it shows first. Hearing the caller in both ears, instead of one phone pressed to one ear, is the change people notice fastest. And a behind-the-ear fit with a soft dome suits plenty of ears that an in-canal aid never sat in comfortably.”
NR
Nadia RahmanAudiologist, independent reviewer
“Won’t it be a big plastic thing behind my ear?”
Fair question. It is not invisible, and we won’t pretend it is. Here is what it really looks like.
Small and light: 4 grams
The body behind the ear is about 3 cm long, the size of a paperclip, and weighs 4 grams. A thin clear wire runs to a soft dome in the ear.
Hidden by hair or glasses
It tucks behind the ear, under your hair or beside a glasses arm. Most people only notice if you tell them.
Silver-white, not beige
Not the beige NHS kind. No thick tube and no moulded earpiece, just a small silver-white body and a hair-thin clear wire to a soft dome.
Still unsure?
Wear Certus Max at home for 90 days: three months of calls, meals out and music. If it is not right for you, send it back for a full refund.
The honest maths
What Bluetooth hearing aids actually cost in the UK
Same goal: hear every call and every word. Three very different bills.
Option 1
Private audiologist
£1,000–£3,000+ per pair
Off-the-shelf Bluetooth pairs on the high street start around £475. Fitted clinic pairs, with tests and follow-ups, run £1,000 to £3,000 or more. The right route for severe or complex loss.
Option 2
The NHS route
“Free”, but you wait
Free, and many trusts now fit Bluetooth aids. The catch is the wait: a GP referral, then months or even years on the list. Some areas still fit the bulky beige kind. Good if you can wait. Hard when you are missing calls today.
Option 3
Certus Max
£349.99 today
A Bluetooth hearing aid that streams calls and music into both ears, with a touchscreen case. At your door in days, set up in minutes, with 90 days to prove itself.
90-day money-back · 2-year guarantee · Free UK delivery
Compare before you buy
Why Certus Max is different
Certus Max
Cheap “Bluetooth” amplifiers (£40–£120)
Phone calls and music in both ears
✓
דBluetooth” means an app only
Certified hearing aid: lifts voices, turns noise down
✓
×unregulated ‘amplifier’
Touchscreen case shows both volumes
✓
×tiny buttons, guesswork
Fits small ear canals, 5 dome sizes
✓
×one generic tip
Up to 15h a day, case refills 4 to 5 times
✓
×tiny batteries to swap
Free app with a 5-minute hearing check
✓
×one sound for everyone
90-day home trial
✓
×30 days at best
2-year guarantee
✓
×3 months at best
Proven results
What 2,309 verified customers report
*Based on analysis of 2,309 verified reviews.
92%
Rate it 5 stars
and say they would choose Certus Max again.
9/10
Take calls without speakerphone
who had been handing the phone to somebody else.
15h
A full day of listening
with about five hours of that on calls.
Customer Reviews
4.9
Based on 2,309 reviews
2,130
144
22
9
4
100% verified buyers
Every review here was left by someone who bought Certus Max from us. Critical reviews are never edited or removed.
Certus Max in real life
BBrenda ScholesVerified buyer
My husband bought them after three years of me saying I was fine
My husband bought these for me after about three years of me saying I was fine. I wasn't fine. The first thing that happened was the hearing check on the phone, which he did with me sat in the conservatory with my eyes shut, and it told us my right ear is a good deal worse than my left, which neither of us knew. It set them separately. The second thing was our daughter rang from Dublin and I talked to her for forty minutes without once asking her to say it again. He has not said I told you so, which is good of him.
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AArchibald M.Verified buyer
Thirty years in kitchens and everybody is the same
I'm a chef and kitchens have finished the hearing of everybody I have ever worked with. Extraction, pans, a radio, and somebody shouting service. I am fifty one and I'd got to where I couldn't hear the waiting staff calling an order from six feet away, which in a kitchen is dangerous as well as embarrassing. These go under the hat, they do not mind the heat, and I haven't missed a call since July. I clean them every night with the brush because of the grease.
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CClive JacksonVerified buyer
Thirty one years on the bins
Thirty one years on the bins and nobody handed out ear protection until about 1998. The lorry ran all day behind you and that was that. I had got to the point where I wouldn't answer the house phone, I had let it ring and look at it. These put the call into both ears at once and it's a completely different thing to holding a handset against one bad ear. My sister rang on the Tuesday and we were on for half an hour about nothing in particular. That is the bit I had lost and didn't realise I had lost.
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TTrevor S.Verified buyer
Knocking one off for the case size
Pleased overall and knocking one off for the case size. It's a lovely thing and the screen is genuinely useful, but it's bigger than I pictured from the photographs, about the size of a deck of cards and a bit thicker. It doesn't go in a jeans pocket without making a lump. It lives in my coat and that's fine, but if you were planning on carrying it in a trouser pocket all day, have a look at the dimensions before you order.
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EEwan MVerified buyer
My wife has done my phone calls for ten years
I lost most of the top end in the army and have been pretending otherwise since 1991. My wife has done my phone calls for about ten years. She would take the handset, have the conversation, and then tell me what was said, and she was sick of it and I don't blame her. Since July she has not had to do it once. That is the whole review. The rest of it, the music and the modes and the little screen, is all very good, but that's the bit that changed the house.
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IIona G.Verified buyer
Ninety one and the memory clinic sent us
Our father in law is ninety one and has got a bit of dementia. The memory clinic said get his hearing sorted because half of what looks like confusion isn't hearing the question. He could never manage the little in ear ones. These he can do, because the body goes behind the ear and he can feel it, and the wire finds its own way. We did his check in his chair at the home. He is brighter. I can't tell you how much is the hearing and how much is being able to join in, but he is brighter.
Was this helpful?
Set up in minutes, even if “tech” isn’t your thing
No appointment and no computer. A plain-English guide is in the box.
Swipe through the 3 steps
Step 1
Charge the aids in the case with the USB-C cable. The screen on the case shows the battery.
Step 2
Pick the dome size that feels snug and comfortable, and pair Certus Max with your phone’s Bluetooth, like earbuds.
Step 3
Run the five-minute hearing check in the free app, one ear at a time. Then take your first call.
What’s in the box
Everything you need to pair, fit and wear them the same day
✓1 pair of Certus Max hearing aids (left and right)
✓Charging case with a colour touchscreen
✓5 sizes of soft domes
✓2 cleaning tools & a USB-C charging cable
✓Plain-English guide
No subscriptions and no clinic visit. Charge them, pair once, and take your first call the same day.
Is Certus Max the right choice for you?
For people who want calls and music in their ears, or whose ears in-ear aids won’t fit.
Best for
✓Phone calls are the hardest part of your day
✓You want music, podcasts or audiobooks in your ears too
✓In-ear aids hurt, work loose or fall out of your ears
✓You use a smartphone for calls and messages
Choose another option if
!You have sudden hearing loss, pain or discharge
!You need a prescription device for severe or complex hearing loss
!You want a device fitted and tuned by a clinician in person
!You want a pair that sits fully inside the ear: see Certus One or Certus Pro
If the first list sounds like you, Certus Max is built for exactly that. And you have 90 days to prove it.
Technical Specifications
Built for daily use
See full specifications
Works with
iPhone and Android phones with Bluetooth, paired like earbuds
Type
Receiver-in-canal (RIC) hearing aids: the body sits behind the ear and a thin wire carries sound to a dome in the ear. Bluetooth, rechargeable, sold as a pair
Bluetooth
Phone calls, video calls, music, podcasts and audiobooks streamed to both ears. Pairs with iPhone and Android phones, like earbuds
Fit
Behind the ear with a thin clear wire; 4g each; 5 sizes of soft domes
Charging case
Colour touchscreen: left and right volume, mode and battery; change volume and mode on the case
Up to 15 hours of hearing; about 5 hours of calls or 6 hours of music
Case top-ups
Refills the aids 4 to 5 times; aids charge in about 1.2 hours, the case in about 2.5 hours (USB-C)
App
Free app: five-minute hearing check, per-ear volume and modes
Best for
Mild-to-moderate hearing loss
Guarantee
2-year Certus brand guarantee
Try Certus Max Risk-Free
Order today and wear them at home for three full months: on the phone, on video calls, round the table, with music on a walk. If they’re not right for you, return them within 90 days for a full refund. No restocking fee, no hassle.
90-day trial
Full refund, no restocking fee
2-year guarantee
Faults repaired or replaced
Free delivery
Free tracked delivery
Human support
A human answers
Still deciding if Certus Max fits your day?
Will I really hear phone calls in both ears?
Yes. It pairs with your phone over Bluetooth, like earbuds. When a call comes in, you hear the caller in both ears. No speakerphone, and no phone pressed to your ear.
Does it work with my phone?
It pairs with iPhone and Android phones over Bluetooth, the same way earbuds do. Older phones work too, as long as they have Bluetooth. If it will not pair with your phone, email us and a person will talk you through it. If it still won’t, send it back for a full refund.
Will they whistle?
Only if the dome does not sit snugly. That is why five dome sizes come in the box. If you hear a whistle, try one size up. During a call the voice goes from the phone straight into your ears, so holding the phone near your ear will not make them squeal.
Can I watch the telly through them?
Anything you watch on your phone or tablet plays in your ears: video calls, catch-up, YouTube, films. Certus Max does not connect to the telly on its own. In the room, it works as a hearing aid and makes the telly clearer like any other voice.
How long does the battery last?
Up to 15 hours a day of hearing. Streaming uses more power: about 5 hours of calls or about 6 hours of music. The case refills the aids 4 to 5 times, so a long day out is covered.
My ear canals are small. Will these fit?
That is exactly who Certus Max is for. The aid sits behind the ear and only a soft dome goes in the ear, with five dome sizes in the box. If in-ear aids hurt or fell out, start with a smaller dome.
Will people see it?
It is not invisible. It is small and discreet: a 4g silver-white body behind the ear and a thin clear wire, usually hidden by your hair or glasses. If you want a pair that sits fully inside the ear, look at Certus One or Certus Pro.
Can I set it up for my mum or dad?
Yes. Pair it once to their phone and run the hearing check with them: about ten minutes. After that it connects by itself whenever they lift the aids out of the case, and they can change the volume on the case screen without touching the phone.
Why not just use AirPods?
AirPods hearing mode needs an iPhone, lasts about 5 to 6 hours, and looks like you are listening to music. Certus Max works with iPhone or Android, gives up to 15 hours a day of hearing, and its case screen shows both volumes.
Do I have to use the app?
No. You can change the volume and mode on the touchscreen case, and on the aids. The free app adds the five-minute hearing check and per-ear volume, and pairing for calls is done in your phone’s Bluetooth settings.
Is this a real hearing aid or just an amplifier?
A real hearing aid. Certus Max is a certified hearing aid for mild-to-moderate hearing loss. That is a regulated category with real requirements behind it. Cheap ‘Bluetooth amplifiers’ turn every sound up at once; Certus Max lifts voices, turns background noise down, and streams calls and music into both ears.
Are they suitable for severe hearing loss?
No. Certus Max is for mild-to-moderate hearing loss and everyday situations: conversation, calls, music. For severe or profound loss, a prescription aid is the right route.
How can it cost so much less than the audiologist?
Because you are not paying for the building. A fitted Bluetooth pair costs £1,000 to £3,000 largely due to clinic overheads, appointments and fitting fees. Even the off-the-shelf pairs on the high street cost over £100 more than Certus Max. Certus Max comes straight to your door, with 90 days at home to prove it does the job.
How does delivery work?
Every order goes by Fast Tracked Shipping: free, tracked and insured. Your tracking link arrives by email as soon as it leaves us.
What if one stops working?
Email us. A real person replies within 24 hours. If it develops a fault in the first two years, we repair or replace it under your 2-year guarantee.
What if they’re not right for me?
Send them back within 90 days for a full refund, with no restocking fee. Covered by a 2-year guarantee.
4.9/5 based on 2,309 reviews
Try Certus Max Risk-Free
Wear them through real daily moments: the calls you used to dread, the family on video, music on a walk. If it is not right for you, send it back. We make it effortless.
90-day money-backUse them at home for three full months. Not right for you? Return them for a full refund, no restocking fee.
2-year guaranteeCovered against faults for two full years, backed by real human support whenever you need it.
Free deliveryFree, tracked and insured, with your tracking link by email.
Calls and music in both ears. Room conversation too.Certified hearing aid for mild to moderate hearing loss
A certified hearing aid, not a ‘Bluetooth amplifier’
Certus Max · 1 Pair
£349.99£699.99
4.9 · 2,309 reviews
Certus Max · 1 Pair
£349.99£699.99
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Certified, rechargeable hearing aids for mild to moderate hearing loss.
Hear Every Phone Call in Both Ears, With No Speakerphone. Music Too. Sits Behind the Ear, So It Fits Small Ears. No Clinic, No Waiting List.
Sale price£349.99Regular price£699.99Save £350Pay in 3 interest-free payments of £116.66 with Klarna.
The Certified Bluetooth Hearing Aid for Calls and Music
Take calls in both ears, no speakerphoneTouchscreen case shows both volumes at a glanceSits behind the ear: fits small ear canalsUp to 15 hours a day, about 5 hours of calls
How many pairs?One pair covers both ears
1 Pair£349.99£699.99
Best value2 Pairs£559.99£1,399.98For a partner, or for both parents: the second pair is £210.00, not £349.99.
Price will go back to normal in --:--
90-Day Money-Back GuaranteeFast UK Delivery
SELLING OUT FAST
Due to high demand, limited stock in the UK warehouse
87% SOLD
The Certus 90-Day Hear-Every-Call GuaranteeWear them for three months: calls with the family, the GP ringing back, meals out, the radio on a walk. If calls are not clearer in both ears, send them back for a full refund. Simple returns, no restocking fee.
★★★★★Verified Customer
“My wife has done my phone calls for about ten years. She would take the handset, have the conversation, then tell me what was said. Since July she has not had to do it once.”
Pay in 3 interest-free payments of £116.66 with Klarna.
annem.1958“My daughter rang and her voice was in both ears. No speakerphone, no phone pressed to the side of my head.”
geoff.harding“I expected a huge plastic thing behind my ear. It’s a little silver body and a clear wire, nobody has said a word.”
sandra.k.newcastle“Both volumes sit on the lid of the case. I change them there instead of hunting for my phone.”
raymond.t.1954“I used to dread the phone ringing. Now I answer it with my hands full and carry on with what I was doing.”
