Your words.
Through
thin air.

Message the people around you,
even without internet.

How it works
A polished orange microphone and translucent sound-wave sculptures

Less network.
More connection.

Two nearby people exchanging text through sound waves between their phones

Connect through sound.

No Wi-Fi. No mobile data.
Just two devices and sound.

Two phones tuned together, with a sound wave and microphone between them

Meet on the same channel.

Choose the same channel.
Turn listening on to receive.

A person choosing a profile on a phone beside sound waves and a speaker volume slider

Make yourself heard.

Set your name. Adjust the volume.
Broadcast to people nearby.

Before you
broadcast.

Nearby listeners can read it.

Anyone nearby listening on the same channel can receive your messages. Keep personal and confidential information out of your broadcasts.

Broadcasts can be loud.

Lower channels may be audible to people nearby. Higher speaker volume can help messages travel farther, but broadcasts may be loud—be mindful of those around you.

Listen live. No audio saved.

With reception on, your microphone stays active to receive nearby messages in real time. No audio is saved on your device or sent to a server.

Sound needs a clear path.

Noise, obstacles, echoes and too much distance can prevent messages from arriving. Delivery is not guaranteed, even on the same channel.