Vuzix M400 Smart Glasses: Unmatched comfort & performance for all-day smart glasses to use in any work environment. The lightest, most comfortable smart glasses specifically designed for all day wear. Expansive OLED panel display and auto-focus camera with built-in scanner, High performance Qualcomm XR1 processor, Long-life hot swapable batteries for zero downtime, Voice control in multiple languages and Left or right eye use with a variety of mounting options.