ASUS MX239H. Display diagonal: 584.2 mm (23 "), Response time: 5 ms, Display brightness: 250 cd/m². Number of loudspeakers: 2 pcs, RMS rated power: 6 W. Tilt angle: -5 - 20 °. Input voltage: 110 - 240 V, Input frequency: 50 Hz, Power consumption (standby): 0.5 W. Width: 522.2 mm, Depth: 207.2 mm, Height: 392.2 mm