If you prefer glasses to contact lenses or you regularly rock your favorite sunnies while out and about, you may also struggle to keep your headphones on for extended periods. The glasses and headphones combo can be hard on the ears and may cause some discomfort. This is why we have Bluetooth audio glasses that act as a two-in-one device. They’re essentially a form of wireless open headphones that allow you to hear the outside world while listening to audio streamed from your smartphone and other Bluetooth-enabled devices.