... , Horse Head Brand Main Features:Windows XP operation system basedUltrasound Work-Station managing systemPowerful measurement & calculation software ... monitorImage conversion Up/Down, Left/Right, Black/White Display Mode B, B/B, B+M, M,4BScanning ... supply AC 110V~240V, 50Hz/60HzImage storageBuilt-in Patient Information Management SystemMeasurementDistance, circumference, area, volume, gestational age, ...