Technical Specification: Scanning Method: Convex, Micro-convex, Linear, rectal; Display Mode: B, B+B, B+M, M; Gray Scale: 256 levels; Monitor: 6.4 inch TFT color LCD ; Image Procession: DFS, DRF, RDA, VGA/DSC and Image Post Procession; 128 frames for cine-memory; 32 image permanent storage; Image magnification: ?.0, ?.2, ?.5, ?.0 times; 4 focusing combination selectable; 4 different coded-color available; 15 difference kinds of body marks with difference calipers; Measurement in Distance, Circumference/Area, Time/Heart Rate/EF rate for heart, and GS, CRL, BPD, HC, FL, AC for OB/GY measurement, and Gestational Age, Fetal weight, EDD calculation; Characteristic showing in real-time clock, ID, Sex, Age, Focusing Info and Gain (Near, Far, Overall) info; PAL-D output; Mouse interface;