Get macOS Sender
Version 1.0.1 Live

Your Phone is Your
Wireless Speaker

When your PC has no speaker or you need a portable sound solution, recycle your spare smartphone into a high-fidelity wireless speaker. Connect instantly with a single **QR code scan** to stream real-time system audio over local Wi-Fi. No manual IP typing required.

Speaker Receiver
Connected
Streaming PC audio smoothly

PC Senders

Desktop utilities to capture & stream audio

PCSpeakerSender (macOS)
v1.0.1 • PKG Package (6.9MB)
Download
PCSpeakerSender (Windows)
v1.0.1 • Inno Setup Installer (4.1MB)
Download
※ macOS requires ScreenCaptureKit authorization on first start. Learn How It Works

Mobile Receivers

Smartphone apps to play streamed audio

iOS Speaker Receiver
App Store
Download
Android Speaker Receiver
Google Play
Download

Smart Solution for Wireless Audio

Providing the best performance and connectivity from audio capture to smartphone playback.

One-Touch QR Connection

Forget tedious IP addresses and device configurations. Simply point your smartphone camera at the QR code displayed on the PC program window to link up instantly.

48kHz High-Fidelity Sound

Stream high-quality sound with zero high-frequency compression distortion. Supports 48kHz / 2-channel Float32 PCM streaming, delivering rich sound exactly as produced.

Ultra-Low Latency WebSocket

Optimized for local networks using WebSocket socket streaming. Enjoy near real-time audio sync with minimal buffer times, perfect for media playback.

Native Background Playback

Keep streaming even when multitasking or when your screen is locked. Built utilizing iOS AVAudioEngine sessions and Android Foreground Service notifications.

Native OS Audio Helpers

Equipped with native macOS ScreenCaptureKit and Windows WASAPI loopback support. Capture raw audio directly from your system mixer cleanly.

Diagnostics & Auto-Recovery

Features quick connection recovery algorithms. If Wi-Fi signal drops momentarily, the app immediately re-establishes socket synchronization.

Try Connection Demo

Experience how the PC program and smartphone pair instantly via QR code directly in your browser.

PC Speaker Sender
Speaker Sender
Waiting for connection...
Local IP: 192.168.0.4
Port: 8080
Click "Start Demo" button
Disconnected

Simple Setup Steps

Get your smartphone wireless speaker setup up and running in under a minute.

1

Download & Run PC Sender

Download the **macOS installer package (.pkg)** or Windows executable matching your computer's operating system. Launch it to display the pairing QR code screen automatically.

2

Open Mobile App & Scan QR

Open the Speaker receiver app on your iPhone or Android device, and scan the QR code displayed on your PC. The client automatically parses local server parameters and connects.

3

Enjoy Live Streaming

Once connection is established, all PC audio plays through your mobile speaker. Ensure the virtual audio helper output (e.g. BlackHole on macOS) is selected in your system sound controls.

Frequently Asked Questions (FAQ)

Find answers to common questions about using Speaker.

Yes, they must. To minimize audio latency and keep connection secure, Speaker transmits socket audio streams directly within the same local area network (LAN). Because it does not loop data through external servers, it consumes no mobile data and guarantees stable high-fidelity throughput.
macOS utilizes the **ScreenCaptureKit** framework to capture system-wide loopback audio output. Apple structures this framework's authorization flow inside the Screen Recording permission group. The application does not store, record, or share any video screen frames; it only samples the digital stereo PCM stream.
Average latency resides between **20ms and 50ms**, which is practically unnoticeable to the human ear. Speed is highly dependent on Wi-Fi router congestion. If you experience dropouts, try adjusting buffer thresholds or connecting your devices to a less congested 5GHz Wi-Fi network.
Yes, it does. iOS leverages native AVAudioEngine background audio category session listeners, and Android runs a persistent Foreground Service notification to preserve socket connections and playback even when screen sleep triggers or you switch to other apps.