Custom Porto
- Best for
- Security & events
- Sound
- Surroundings stay audible
- Filter
- Open design (hollow)
Can't decide?
Find perfect earplugs in 20 sec.

Make an appointment online
Easily make an appointment online. For the complete appointment, we schedule a total of 20 minutes.

Measurement at our location
During the scheduled appointment you can, view demos and finalize your choices.

We customize your earplugs
As soon as your earplugs are ready you will be notified by us.

Collecting/Shipping earplugs.
We ship the earplugs or make an appointment to pick them up (with inspection and instruction).
Completely sealed fit
Moulded to your ear canal for an exact, comfortable seal
Barely visible
A discreet, low-profile fit that stays put all day
Long lifespan
Premium materials built to last for years of use
Custom Pure Tones
€159.95
Incl. VAT
Custom-made earplugs offer the perfect fit and maximum protection. From a professional ear impression in our Dutch workshop to skilled craftsmanship with hypoallergenic materials. Every pair comes with a 100% comfort guarantee, free filter changes and a 2+ year quality warranty.
Custom earplugs, also known as otoplastics, are specially designed to fit your ears perfectly. They offer unrivalled comfort and optimal sound attenuation, because they are tailored precisely to the shape of your ear canal. Choose custom hearing protection now.
Which version you need depends on what you wear them for. Below we set out what otoplastics actually are, which ones we make, what they cost and how the fitting works.
Otoplastics are earplugs made from an impression of your own ear canal. Where a universal plug has to fit as many ears as possible, an otoplastic only fits yours. As a result no sound leaks past the edge, and after a while you stop noticing that you are wearing them.
There is no single type. What gets attenuated, and what you still hear, depends on the situation you wear them in:
Not sure yet which version suits you? During the free fitting appointment we look together at where and how long you wear them.
If you wear your earplugs for hours every working day, this is where you notice the difference with universal plugs fastest: otoplastics sit all day without pinching, so you do not take them out halfway through the afternoon, and you can still understand your colleague. If you work in construction, industry or a workshop, have a look at hearing protection at work or hearing protection for construction — for companies we come to you for the fitting and take care of the checks and the leak test afterwards. For DIY jobs at home a simpler filter is usually enough. What the law asks of employers is set out further down this page.
You can have otoplastics from us from €119.95, including VAT. What you pay exactly depends on the filter and the extras you choose:
The fitting appointment is free, and every price includes a minimum 2-year warranty, a 100% comfort guarantee and free filter changes. After the fitting your earplugs are usually ready within three weeks; with an express order it can be done within 5 working days.
We make otoplastics in two materials: soft, flexible silicone — pleasant if you wear them for long stretches or sleep in them — and durable acrylic. Which material suits you best depends on what you use them for; our article on hard or soft custom-made earplugs explains the difference.
The filter then determines what you do still hear. A music filter attenuates all tones evenly, so music keeps sounding true. An impulse filter catches peak sounds, as in the shooting sports. And for sleeping or swimming the earplug closes off completely. That way you get exactly the attenuation your situation calls for, instead of a one-size-fits-all solution.
Before we fit your earplugs, you first need to know which ones you need. Are you looking for earplugs to always sleep soundly? Then you need our Custom SleepzZ. For DIY work, choose Custom Hobby, and for swimming there is Dry Ears. Once we know what you are going to use the custom-made earplugs for, we know which filter is needed.
Easily make an appointment for a fitting at one of our locations.
When you have earplugs fitted, you get otoplastics with a unique fit that connect perfectly to your ear canal. In addition, your sound environment is also taken into account during the fitting of the earplugs. Wearing custom-made earplugs offers several advantages:
At Audinc we make otoplastics. We make your earplugs genuinely fully to measure. Together we look at which product best suits your situation.
You can recognise custom-made earplugs by their perfect fit and high wearing comfort. The process starts with fitting the otoplastics. For this we first carry out a brief inspection of the ears. We check whether the ears first need to be flushed out by a doctor. If not, we make an impression of the ear canal straight away. This is needed so that we can fit the earplugs precisely.
Before we make the impression, we place a small piece of cotton wool in your ear canal. With this we protect the eardrum. Next we inject a silicone paste into the ear canal, which you barely feel. We send the silicone impression of your ears to our lab. There we make the final adjustments to produce the otoplastics exactly to measure. This usually takes about three weeks (15 working days). Do you need the earplugs sooner? Then express delivery is possible. The custom-made earplugs are then ready within 5 working days.
Custom otoplastics offer all kinds of advantages over standard earplugs. They sit perfectly in your ear, provide maximum protection and last for years as well. Your fitted earplugs are then completely perfect.
Below we list the main advantages for you:
Variety of applications: Whether you need hearing protection at work or while travelling, or are looking for something for concerts, swimming or sleeping, there is always a suitable solution.
You do not buy Audinc custom-made earplugs for the short term. They last for years. That is why we always give you a minimum 2-year warranty and a 100% comfort guarantee.
In addition to supplying high-quality custom-made earplugs, Audinc also offers extensive maintenance and service options. Because, just like many other products, fitted earplugs sometimes need maintenance and service too. You are always welcome to drop by to have your otoplastics ultrasonically cleaned, so that they feel nice and fresh again.
And sometimes, after intensive use, a repair is needed, for example with earplugs that have built-in speakers. Do not assume right away that you need new earplugs. We are more than happy to carry out small adjustments and repairs for you. Sometimes repairs are still covered by the warranty, and otherwise we always let you know in advance which is more cost-effective: a repair or buying new fitted earplugs.

Because you wear the otoplastics a lot, and sometimes for long periods, you should really not even feel that you have them in. That is why we offer a 100% comfort guarantee. Of course, at Audinc we also have a solution for those moments when your fitted earplugs no longer sit 100% comfortably: the “fit test.” As soon as you notice that your earplugs no longer fit perfectly or sit well, you come by and we adjust them for you.
Audinc’s otoplastics meet all the statutory hearing-protection requirements for the workplace. When employees are exposed to noise of 80 decibels and above, the employer must make hearing protection available.
When employees are exposed to 85 decibels and above on a daily basis, wearing the fitted earplugs or other hearing protectors is also mandatory for the duration of the exposure. A plan of action must then be drawn up as well. Custom-made earplugs must now undergo a leak test both when first used and every 2 years. When it is not possible to test earplugs for leaks, they must be replaced every 4 years. For all Audinc earplugs, we are able to test them digitally and remotely.
Yes, they are the same product. “Otoplastics” is the word audiologists and occupational health services use; in everyday language we say custom-made earplugs. The technical term is a little broader: it also covers the ear pieces that belong to a hearing aid. What we make is always hearing protection, either against noise or against water.
Proper care is essential to keep your custom-made earplugs in good condition. We supply all our fitted earplugs with a handy storage case. Always use this case whenever you are not wearing the earplugs, so you do not lose them and they stay protected from dirt and damage. Need extra cleaning wipes? You can pick these up from us free of charge.
With us, otoplastics start at €119.95. The price for custom-made earplugs at Audinc depends on the type you choose and any additional wishes or adjustments. Sleep and swimming plugs cost €119.95, motorcycle and music plugs €128.95, and earplugs with Bluetooth €199.95. Our prices are transparent and you will find them with every product in our range — and the fitting is always free.
Usually not: most health insurers do not cover custom-made earplugs, although there are exceptions — so always check your policy. In some cases you can declare the cost for income tax purposes. There is more about this in our article on claiming earplugs from insurance.
For high-quality custom-made earplugs, you can visit one of the Audinc service points. We have locations in Amsterdam, Apeldoorn, Breda, Eindhoven, Groningen, Maastricht, Rotterdam, Utrecht and Zwolle, so there is always a branch near you. We make sure your earplugs fit perfectly and fully meet your needs.
Absolutely, Audinc also offers custom hearing protection for companies. This can be essential in environments with a lot of noise, such as construction or industrial workplaces. For more information, see the workplace hearing protection page, where you will find more details.
Custom-made earplugs always provide better sound attenuation than universal earplugs. They are shaped specifically to your ear canal, so no sound can leak past. The fit not only adds extra comfort but also makes the earplugs considerably more effective at attenuating sound.
That depends on how long you wear them. Earmuffs go on and off quickly and you can share them with a colleague, so for short or occasional noise they do the job well. The drawback is that they cover the whole ear: warning signals and the people around you are harder to make out, and your ears get warm under the cups. Otoplastics sit in your ear canal, are barely noticeable and stay in all day, because they are made to the shape of your own ear. The filter decides what still comes through, so you keep hearing the warning signals from machines and your colleague’s instructions. In very loud noise you can wear both at once: the earplugs fit under an earmuff or headset, for double protection. We are happy to look at what makes sense in your workplace — there is more about that on hearing protection at work.
Hold the earplug between thumb and index finger with the tip pointing up, place it in your ear canal and turn it a quarter turn. The right earplug usually has a red marking and the left one blue; with some colours we use white for right and blue for left, so the marking stays clearly visible. Each earplug also carries an R and an L. The easiest way to take them out is to pull your ear back slightly and press on the lower part of your ear; the plug comes loose and you turn it forward as you take it out. When you collect your earplugs we show you once and check the fit straight away. Step by step, with a photo, it is set out in how do I place the earplugs in my ears.
Custom hearing protection lasts for years. At Audinc we always offer a minimum 2-year warranty on our earplugs, plus a 100% comfort guarantee. The material itself barely wears out; what does change is your ear canal. How quickly that happens differs from person to person, but we use 4 years as the moment to have your otoplastics checked. That check is free of charge, even if your earplugs are older. If you use them at work, a leak test is mandatory as well; how that works is explained in checks and leak tests on your hearing protection. If you notice in the meantime that they no longer sit comfortably, come by for a fit test and adjustment.