Razer has decided to get into the smart glasses market with the Anzu. Aside from having two shape, size, and lens options, the Anzu also features built-in audio functionality. Similar to the Bose audio sunglasses, the Razer Anzu feature open-ear speaker design that projects sound towards your ears from the temples. You can have music stream to your glasses or you can also take calls with the built-in microphone. To control playback, the Anzu have touch controls on the temples that let you access a variety of functions. They are available on both temples so you can use them...
Source: https://www.gsmarena.com/razer_launches_anzu_smart_glasses_for_200-news-48088.php