Earbud Checker: Latency & L/R

Earbud Checker tests your earphones and headphones in minutes. Step-by-step picture guides show exactly what to do, so anyone can run every test. MEASURE LATENCY (AUDIO LAG) The app plays a short click and listens for it with your phone's own microphone, then shows how many milliseconds your earbuds add. No stopwatch, no guessing. - Works with Bluetooth, wired and USB earphones - Tells you if the delay is fine for video, music or games - Use the number for in-game audio offset settings - iOS also shows the latency the system reports, next to the measured value FREE TESTS - Left / Right: a voice says "Left" and "Right" in each ear - Volume balance: find out if one side is quieter - Phase (polarity): spot reversed wiring - Frequency range: how low and how high you can hear with these earphones - Rattle & distortion: deep bass sweeps reveal buzzing - Earphone mic: record and play back, and…