SpeakerEject plays a short 165 to 230 Hz tone sweep for phone speakers that sound muffled after recent water exposure. Run the tone, wipe away visible droplets, then test the speaker and compare the sound. The site also has headphone tests, downloadable WAV files, and guides for iPhone, Android, AirPods, and Apple Watch. The tone may help move moisture near the grille, but it cannot dry a phone or fix hardware damage.