ASUS VT229H. Display diagonal: 54.6 cm (21.5″), Display resolution: 1920 x 1080 pixels, HD type: Full HD, Display technology: LED, Display surface: Gloss, Response time: 5 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in speaker(s). Built-in USB hub. VESA mounting. Product colour: Black