Meta has sold 7M+ Ray-Ban glasses that look identical to normal glasses but can record you silently.
NoPeek detects them using immutable BLE manufacturer company IDs signals that cannot be randomized or hidden unlike MAC addresses.
Detects: Meta Ray-Ban, Snap Spectacles, Oakley Meta, TCL RayNeo, Meta Quest, Apple Vision Pro, Pico VR and more.
No ads. No tracking. No internet permission. Fully open source. MIT license.
You can build from source with Android Studio.
The link to the APK seemingly is broken so that leaves just building from source, which it has instructions for.