IDUN recruits testers for Guardian 4 EEG earbuds measuring focus, relaxation and brain battery
melnykowycz · x · 2026-11-10
Switzerland's IDUN Technologies is recruiting participants aged 20+ to test the Guardian 4 in-ear EEG earbuds and new Insights app for 5–7 days in everyday life (unpaid, early access offered). The app measures Engagement, Relaxation, and Brain-Battery metrics from EEG recorded inside the ear; no neuroscience background needed.
Related event: IDUN Recruits Testers for Guardian 4 EEG Earbuds(2 posts)→
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