Open source — Apache 2.0

Send data over sound

Open-source SDKs for ultrasonic data exchange between nearby devices. No Bluetooth, no WiFi, no pairing.

Video coming soon

How it works

Three simple steps. No hardware, no pairing, no setup.

Turn any data payload into an audio signal — audible or ultrasonic.

The encoded signal travels through the air via the device speaker. No network needed.

A nearby device picks up the audio with its microphone and extracts the original data.

Any scenario where two devices need to exchange small data payloads nearby.

📡

Share links, contacts, or tickets with people nearby — just play a sound.

🔗

Pair devices instantly by playing a short audio handshake. Works with any speaker.

🔌

Configure smart devices by sending Wi-Fi credentials or setup data over sound. No app pairing flow.

🎤

Push interactive content to every phone in the venue simultaneously via the PA system.

SDKs for every platform. Same API everywhere.

Flutter— Dart

final beeping = Beeping(mode: BeepingMode.cloud);
final audio = await beeping.encode("a1b2c");
await audioPlayer.play(audio);

Android— Kotlin

val beeping = Beeping.Builder()
    .mode(BeepingMode.CLOUD)
    .build()
val audio = beeping.encode("a1b2c")

iOS— Swift

let beeping = Beeping(mode: .cloud)
let audio = try await beeping.encode("a1b2c")
try await player.play(audio)

Web / Node— TypeScript

const beeping = new Beeping({ mode: "cloud" });
const audio = await beeping.encode("a1b2c");
audioContext.play(audio);

Every SDK supports both modes. Switch at runtime with one line.

☁️

API key

🔌

On-device