Are the tools free?
Yes. The tools are designed to run in the browser without installing an app.
Can a test repair a speaker?
No. The tools help check symptoms and generate test signals; they do not repair physical damage.
Can sound eject water?
It may help move small amounts of water or particles near the grille, but it does not measure water or guarantee that a device is dry.
Are microphone recordings stored?
The site uses microphone access to perform the requested browser test; see the privacy policy for information about data handling.