Marshall V-LCD171MD monitor provides excellent features in a popular 17-inch size. Straight-forward design with the most-used features built-in including waveform and audio bar overlays, loud speakers, programmable function buttons, three-color tally lights and tilting mount design for easy viewing. Great for use in news vans, satellite trucks and central equipment rooms. The V-LCD171MD base unit comes with no preinstalled module. The V-LCD171MD-3G option includes the base unit with a preinstalled Md-3GE module providing an additional 3G/HD/Sd-sdi input with loop-through. Full HD 1920 x 1080 display Hdmi input / output standard Modular design.