Vuzix Wrap 310XL Widescreen Video Iwear Eyewear Glasses + Lightshield Twin High-Resolution 428 x 240 LCD widescreen WQVGA displays Equivalent to a 55-inch screen viewed from 10 feet 24-bit true color (16 million colors), Adjustable brightness and contrast 60 Hz progressive scan update rate, 26-degree diagonal field of view Wearable over many prescription eyeglasses. Independent +2 to -5 diopter focus adjustment