YunFanLabs
Product support
Tell us the product, device and OS version, the steps that led to the issue, and a screenshot without sensitive information. We will start by reproducing the problem.
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01 / Help us help faster
Product, device model, OS version, and app version.
What you did, what you expected, and what happened instead.
Remove names, locations, account details, and other sensitive content before sending.
02 / What it is for
Record local samples, compare rooms or windows, inspect spectrum clues, and export reports for repair or property conversations—without uploading audio.
Not a certified sound meter and does not provide legal conclusions.