LG 15 Inch Wireless LCD Monitor TV with 802.11 Technology 15LW1R Includes Transmitter, TV Monitor Receiver, Rehargeable Battery, AC Charger, User Guide Native Display Resolution - Up to 1024X768 Contrast Ratio (in a Dark Room environment) - 400 - 1 Brightness - 450 cd/m2 Viewing Angle - 160/130 degrees horizontal/vertical