The frames of the glasses serve as open-ear headphones and the built-in mic not only gives your video footage its soundtrack, but also serves as a bridge to your smartphone via voice commands. Ask Meta to place a voice call, or play music via your favourite platform, or start recording a video, or give you information about what you’re looking at, and it will. There’s no display; Oakley’s Prizm lenses merely soften the light in an agreeable fashion.