Phone Doctor: Speaker & Mic

Phone Doctor: Speaker & Mic とは？

Diagnose and clean your iPhone's speakers and microphones in seconds. Muffled audio after a splash? Calls sound weird and you can't tell if it's the phone or the other end? Phone Doctor tests each speaker (earpiece, bottom, stereo) and each mic (top, bottom, back) individually, so you know exactly which one is off. It also plays a tuned low-frequency tone that vibrates water out of the speaker grilles — the same principle Apple Watch uses for its water lock. Free on the App Store