The Ray-Ban Meta Headliner combines a stylish, retro-inspired design with advanced smart eyewear technology. The Transitions Emerald lenses feature photochromic technology that automatically adjusts tint based on lighting conditions, transitioning from clear to a vibrant emerald hue, providing optimal vision comfort throughout the day. Designed with a 23 mm bridge, 43 mm lens height, and 50 mm lens width, this model offers a comfortable fit for medium-sized faces. Weighing approximately 2 oz (57 g), the glasses feature an injected plastic frame that houses embedded smart technology components, including a built-in 12 MP camera, open-ear speakers, and Meta AI capabilities for hands-free interaction. These smart glasses are not ANSI Z87.1 certified, emphasizing lifestyle use over industrial safety.