Can camera-free smart glasses still record audio?
Yes, if they include a microphone and software that captures audio. Camera-free describes imaging hardware. Whether audio is processed, stored or transmitted depends on the particular feature.
Capture, processing and storage are different events
Ask about each event separately. Audio can be used to recognize a command without implying that a recording remains available afterward. A recording can also be retained or sent elsewhere if the application does that. The microphone's presence alone does not settle either behavior.
For a meeting feature, identify when audio begins, how the user stops it and whether a transcript or recording remains. Explain that actual operation to participants. A camera-free frame can make the imaging question simple, while the audio workflow still deserves a direct explanation.