32V TENS device from built from scratch under $100
https://littlemountainman.github.io/2025/11/17/tens/
#HackerNews #32V #TENS #device #DIY #budgettech #healthtech #innovation
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32V TENS device from built from scratch under $100
https://littlemountainman.github.io/2025/11/17/tens/
#HackerNews #32V #TENS #device #DIY #budgettech #healthtech #innovation
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