Bluetooth Audio Test — Latency, Speaker, Microphone
A free tool to test Bluetooth headphones, speakers, earbuds, and car audio systems. Measure round-trip latency, check stereo channels, test bass response, analyze microphone quality, and run frequency response tests — all in your browser.
Check latency, speaker quality, and microphone of any Bluetooth device
Features
FAQ
How accurate is the latency test?
The test measures real round-trip audio latency (speaker → microphone). For Bluetooth devices, typical latency is 100-300ms. The test takes 5 samples for accuracy.
Why do I need to grant microphone permission?
Microphone permission is needed to: 1) see device names (browser privacy), 2) measure latency (loopback), 3) test your Bluetooth microphone.
Can this detect the Bluetooth codec?
No. Browsers don't expose Bluetooth codec information (SBC, AAC, aptX, LDAC). The tool measures actual audio performance instead.
Does this work with car Bluetooth?
Yes, if your phone is connected to car audio via Bluetooth and you open this page in the phone's browser. The audio plays through the car speakers.
Is any data uploaded?
No. All tests run 100% locally in your browser. No audio data is transmitted to any server.
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