Chirp

Text between two phones, carried by sound alone.

Message

0 / 138 bytes

Options

Encrypt Show a code on this phone, type it on the other.

Sound

Speed

Jingle Musical intro and outro around the data. Broadcast Repeat on a loop so late listeners still catch it. Music bed Hide the tones under a soft pad. Slightly less robust.

Turn the volume up and point the phones at each other.