Audio / Bluetooth Latency Tester

Measure the exact delay of your wireless headphones.

How to use: 1. Click "Start Metronome".
2. A circle will flash every second, and a beep will play.
3. If your headset has lag, the beep will sound after the flash.
4. Adjust the slider until the beep and the flash are perfectly synchronized in your brain.
Play Audio Early Play Audio Late
Audio Shift Applied:
0 ms
Estimated Headset Latency: 0 ms

About the Audio & Bluetooth Latency Tester

Measure the exact millisecond delay of your wireless headset or earbuds to ensure perfect audio synchronization in competitive games.

How to Use

Sync the visual flash on screen with the audio beep you hear. Adjust the offset slider until they match perfectly to find your latency in milliseconds.

Privacy & Security

Like all MessyTools utilities, this tool runs entirely locally in your browser. Your data is never uploaded to any server, ensuring 100% privacy and lightning-fast performance.