Puff: Water Eject & Cleaner

By Boris Spiro on AppTrack Ninja.

Clear Muffled Speaker Sound

Dropped your phone in the sink? Sound gone muffled after the pool or a rainy walk? Puff pushes trapped water out of the speaker grille with sound — the same trick smartwatches use after a swim. Thirty seconds of sound, and the muffle is gone. HOW IT WORKS A speaker membrane moves the most near its resonance, around 165 Hz for phone-sized speakers. Puff sweeps 150–200 Hz so every speaker hits that peak, and the vibration pushes droplets out through the grille. Thirty seconds, phone face down, volume up. That's it. THREE MODES • Water — 30 seconds, pushes trapped water out • Dust — 20 seconds, …

Categories: Utilities, Productivity

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