Automatic Zoom Glasses come in a pack of 2, providing a convenient backup pair for home, office, or travel needs. Smart Autofocus Glasses' auto-adjusting focus ensures clear vision across different distances, ideal for reading, watching TV, or outdoor activities. Smart Zoom Reading Glasses feature 3-second light-sensitive color-changing lenses, staying clear indoors and darkening outdoors to filter UV rays effectively. Auto Focus Glasses use high-definition resin lenses to block harmful blue light, reducing eye strain from prolonged reading or screen time. Self Focusing Glasses adopt a semi-rimless metal frame and lightweight materials, stable, weight-free wear suitable for all-day use.