Files require this version on both devices. Size limit includes filename and type.
Hold the phones within about 1 m, speaker facing the listening device.
Not listening
Waiting to listen
Received text
Waiting for a message…
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.
Custom settings
Presets are on Send and Receive. Apply custom changes here.