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In development · concept stage

Less noise.
More voice.

We’re developing hearing protection that cuts harmful noise but keeps speech clear, so nobody has to lift a cup to talk. Fully passive: no electronics, no batteries, and a target price that’s a fraction of what electronic alternatives cost.

Get in touchHow it works
The Shield
Harmful noise: grinder, hammer, compressor.Clear speech: colleagues, warnings, alarms.

How it works

Orange is the speech band, where voices live. We aim to keep speech intelligible. Grey is the grinder, the hammer, the compressor. We aim to cut it hard. Illustrative design target, not measured data.

300–600 kr

target price per pair. Electronic level-dependent muffs typically cost 1 000–4 500 kr.

Electronic muff prices: Swedish retail, October 2026.

Noise-induced hearing loss is one of the most common occupational diseases in Europe. It’s permanent, and almost always preventable.

  • 53%

    of noise-exposed US workers don’t consistently wear their hearing protection.

    NIOSH (Green et al., 2021), 2014 data

  • 28%

    of EU workers have to raise their voice over noise for at least a quarter of their working time.

    Eurofound, European Working Conditions Survey 2015

  • €185 bn

    a year: the estimated cost of untreated, disabling hearing loss in the EU.

    hear-it AISBL, 2019

Why? Protection comes off to talk. Many workers don’t reject protection; they reject losing communication with colleagues, and missing warnings and alarms. Conventional passive muffs muffle speech along with the noise. Electronic ones cost many times more and need batteries. The safest hearing protection is the one workers actually keep on.

The innovation · The Shield

Engineered acoustics instead of electronics.

The Shield is a passive filter module we’re developing for the earmuff, built from precision-engineered acoustic structures. One module, two jobs: cut harmful noise and keep speech intelligible. Nothing to charge, no electronics to fail.

Designed for

  • Construction
  • Workshops & manufacturing
  • Logistics
  • Mining, airports & ports
  • Defence
Read more about The Shield

Sustainability

No batteries. No electronics. Designed to be repaired and recycled.

UN Sustainable Development Goals our work relates to

  • SDG 3 Good Health
  • SDG 8 Decent Work
  • SDG 12 Consumption & Production
  • SDG 13 Climate Action
Read more about sustainability

The team

Ears from Skåne.

  • Zoltan Michis

    Co-founder & CTO · 20+ years electroacoustics and electronics R&D — Audiodo, Nocs Design, Assa Abloy

  • Toby Hörnlein

    Co-founder & CEO · 12+ years business development and innovation, incl. the Elonroad scale-up

  • Sonja Aits

    Deputy board member · PhD Biomedicine, group leader in AI and data science at Lund University

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