The only earplugs with a volume button

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59,00 €


Preorder price !

New product


Ships late August 2018

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Because on a daily basis, our ears are constantly assaulted by unwanted noises, Knops created a volume knob for them. You can not stand babies crying on public transport? You enjoy music at a moderate volume, searching in vain for a concert with a moderate volume? Or you simply want to preserve your eardrums ... Let yourself be seduced by this pair of revolutionary earpieces and its 4 settings that control the sound of your surroundings.

Knops earplugs with volume button



In fact, there is nothing simpler. Once your pair of Knops is comfortably installed in your ears, you have 4 setting choices.

# 1 - Not touching the volume knob, leaving the sound clear and original. As if you weren't wearing plugs!

# 2 - Ideal to filter the noise of a city too lively for your taste, consists of reducing the volume by 10 dB. And, the more adventurous ones will be able to use it to protect yourselves against your spouses' nagging. At your own risk!

# 3 - The louder the noise, the lower the decibels. At festivals, concerts, parties, etc. Lower by 20 dB to not end with a tinnitus the next day.

# 4 - Quiet in the library! Or not, but this is no longer important thanks to Knops' total isolation (-30 dB) setting. A relief for those who need a complete absence of noise to concentrate best. At the library, in an auditorium, at home or in a park, you'll feel like you're alone!

Knops earplugs t control the volume of your environment


The advantage of all these settings lies in the fact that you won't have to remove, put in, re-remove your pair for every environment change. There is one volume for each situation. Even better, the earplugs can be adjusted individually! Is anyone talking to you? No need to dislodge one plug, adjust one of the ears and discuss easily.

Knops earplugs volume control knob



A hearing protection solution is more practical than aesthetic. But Knops doesn't compromise neither the design nor the efficiency of its plugs. In fact, they will sublimate your look just like a pair of glasses or trendy jewellery. Besides, the choices of the colours of the gramophone, the material and the texture of your plugs are yours.

Knops earplugs with volume control

This innovative pair of earpieces, derived from the genie of acoustics, does not require electronics, connections of any kind and more importantly, batteries. In fact, it simply uses the good old physics. Or more precisely, natural acoustic resonances to tune and acoustic friction to dampen sound waves. Thus, Knops can be as effective as a noise reduction technology, without its disadvantages. Plus, the use of non-corrosive materials facilitates cleaning since it can be exposed to water.



■ Weight: 10 g per piece
■ Settings: -0dB, -10dB, -20dB, -30dB
■ Ring material: gold plated or stainless steel
■ Gramophone colour: black or white
■ Knob texture:smooth or knurling

Knops logo

Young startup based in Amsterdam and founded in January 2017 by 4 ambitious and talented people, Knops is at the origin of the hearing solution of the same name. Two are already the heads of a successful hearing protection company called Thunderplugs, sold in 26 countries around the world: Koen and Quiten. The brothers Arjen and Richard de Jong have already had clients like: NASA, Porsche, Ferrari and IKEA as engineers and designers respectively. They have added a leading innovation and attractive design in the btach. Together, they form the creative pillar of Knops.

This experience in the music industry combined with high-quality engineering and design has enabled Knops to develop a highly successful product. In fact, their Kickstarter campaign launched in March 2017 reaches its goal of €30,000 in 24 hours. These ear plugs have the particularity of a volume knob with 4 settings (-0dB, -10dB, -20dB, -30dB). They raise more than €200,000 at the end of the campaign, a month later.


Shipped by startup. Shipping from January 2018.
Delivered within 1 week.

Delivery fees:
■ France & Europe : €5 
■ Rest of the world: €10 to €15



Right of withdrawal: 14 days from receipt of the order.



If the product is in its original packaging, it has not been used and that it is not damaged or broken. All accessories (and documentation) must be intact and present. The return costs are at the customers expense.



We have thought of everything ! Pay with PayPal and enjoy free returns.




For any return request, contact the startup at, they will communicate the steps as well as the return address.

1. Does Knops need batteries to be used ?

No. The Knops hearing solution is a fully analog and acoustic device and doesn't need batteries. So you can use it all the tile without worrying about dying batteries.


2. Can i use Knops to play music, like earbuds ?

This version of Knops will not support playing music. But we do have plants to develop a version that support playing music.

3. Can you adjust the volum on each ear independently

Yes, You can control the volum independently with the volum button on each ear.


4. I have tinnitus. Will Knops Help me ?

The Knops hearing solution is designed ti reduce volume across the frequency range. Which helps prevent development of tinnitus and hearing loss. That being said, it is not designed to hlep existing tinnitus other than preventing further development of tinnitus.

5. I am sensitive ot noise and / or loud sounds. Will Knops help me ?

Yes, Knops can help you a lot. Knops allow you to turn down the volum of your environment in multiple steps to your liking. This way, Knops can remove noise and lower the volum of loud sounds.



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