Features: 1.Notebook style,special backpack,lightweight and convient ; 2.Intelligent ports, 5 available different probes; 3.Portable and trolley optional; 4.7 segment intelligent STC adjustment, high resolution images; 5.Low radiative 15 inch TFT LCD display; 6.Great capacity of cineloop ,high definition dynamic images; 7.Chinese and english operation interface. Specifications: Scanning Mode: wide frequency electronic Convex/ Linear Display Mode: B, B+B, B+M, M, 4B, 8B Scanning Depth: 220 mm Gray Scales Transformation: gamma correction Image Magnification: 1.0, 1.2, 1.5, 2.0 Monitor: 15 inch TFT LCD display Image Conversion: up and down, left and right, black and white Focusing: variable aperture for section 1,2,3,and 4 available Electronic Focuses: 4 sector dynamic ( Random Combination ) Probe FRE. Support: Convex, Linear, Micro convex, Vaginal, Rectum Resolution: Lateral less than 2mm, Axial less than 1mm Body Marks: 24 Obstetric calculation: BPD, FL, CRL, GS, HC, AD AC, and display fetus age, fetus weight, expected birth date, heart rate, slope ratio, period. Measurement: Distance, Circumference, area, heart rate, EDD, etc. Pseudo-color: 8 available colors Display: Date, Time, Name, Sex, Age, Hospital, Obstetric list, annotation, edit menu, etc. Video Output: PAL, VGA Size:280mmX240mmX210mm Net Weight: 6.5Kg