Too big, too small, always falling out? We know the feeling. That’s why we built AR KI TECH – the first system that uses Augmented Reality and Artificial Intelligence to find your exact earplug size from just two photos of your ears. No guessing, no swapping – just a perfect fit from day one. And because it works so well, our return rate sits at just 3%.
No marketing fluff. Just the stuff you actually want to know by our Hearing Protection specialist & Tech Freak Tom.
Simply put: earplugs only work when they fit properly. Too big = uncomfortable and painful. Too small = falls out, protects nothing. Most people just pick a random size, realise it doesn’t fit, and give up altogether.
AR KI TECH fixes exactly that. Take two photos of your ears – left and right – upload them, and our system tells you which size is right for you. That’s it. Sounds fancy, but it’s genuinely simple.
No. Absolutely nothing. No app download, no account, no subscription. Just head to our page, upload two photos, get your size. Done. Your browser is all you need.
Honestly? About 2 minutes. Taking the photos: 1 minute. Uploading: 10 seconds. Waiting for your result: a few seconds. No joke – it really is that quick.
Rarely happens – but yes, ears can be tricky. If the recommended size isn’t quite right, we’ll sort out an exchange without any hassle. No drama, no lengthy support chat. We stand behind the system and behind you as a customer.
They’re used solely for determining your size. Not stored. Not shared. Not used for any AI training whatsoever. Your ear stays your ear – promised, and legally protected under our Privacy Policy.
Fair question. Here’s the answer: our return rate is around 3%. The industry average is significantly higher. That’s not a coincidence – that’s AR KI TECH. Over one million people have already tried bollsen. Most don’t need to reorder because the very first size they receive is already spot on.
Every ear is different – and that’s exactly why one-size-fits-all simply doesn’t work. AR (Augmented Reality) captures the precise geometry of your ear canal from your photos. AI (Artificial Intelligence) compares that data against our size library and recommends the bollsen size that fits you perfectly. The result: earplugs that sit right, seal properly, and feel comfortable – from the very start.
No pressure, no slipping. The right size sits comfortably all night long – even on your side. Side sleepers, we see you.
Hearing protection only works when it seals properly. With the right size, you actually reach the certified noise reduction values – exactly as they’re meant to be.
Just a 3% return rate – because the size is right from the start. Fewer returns mean less shipping, less packaging, less waste.
AR KI TECH is optimised for our conical earplugs made from medical-grade silicone – whether you’re wearing them for sleep, focused work, travel, or your next gig. For specialist applications, have a look at our FAQs.
