Meta sparks privacy fears after unveiling $299 Smart Glasses with hidden cameras: ‘You can now film everyone without them knowing’::These stylish shades may look like a regular pair of Ray-Ban Wayfarers, but they're actually Meta's new Smart Glasses, complete with two tiny cameras and speakers implanted in the arms. The wearable tech was unveiled by Mark Zuckerberg Wednesday at the 2023 Meta Connect conference in Menlo Park, California, sparking a frenzy online.