Send a small file instead
Hold the phones within about 1 m, speaker facing the listening device.
Auto · Ready for any of the five presets.
Waiting to listen
Received text
Symbols become characters as complete bytes arrive. Text stays provisional until verified.
Microphone / audio diagnostics
Start listening to inspect the microphone settings reported by this browser.
Processing is requested off. Unreported settings and additional browser/device filtering cannot be verified by this page.
Message history
Allow microphone access, then play the sound on the other device.
Advanced settings
For advanced users and debugging. Volume changes immediately; apply other custom changes below. Settings reset when the page reloads. Custom sender settings require Manual reception with matching values.