features: 1.2-probe connectors for wide-band/multi-frequency convex, linear, transvaginal and micro convex probes to obtain quality image in any parts of the patient. 2.extensive software packages including abdomen, ob/gyn, urology, cardiology, small parts etc., 7 methods(gs,crl,bpd,hc,ac,fl,lmp)provided for the measure of fetus age and weight, the user could measure womb, left/right ovary, indometrium, bladder, left/right kidney, prostate, left/right atrium, left/right ventricle, valve and cardium, etc. report page available. 3.up to 3-6 obstetric measurement methods available or the user could define it by himself for specific clinical requirements. 4.in single b mode, enlarge the selected area by pressing down the key zoom in.the enlarged area will be automatically optimized or have a picture-in-picture display. 5.cineloop: up to 256 frames, in the meantime, dozens of images could be permanently saved so that typical diseases could be gathered for further study in the future. 6.6-segment slider tgc and overall gain control. 7.laser printer applicable to print out the ob/gyn, urological,cardiological images & reports for lowering down hospital's cost involved. 8.usb ports available to transfer the image or relevant data to computer. usb flash disk connectible. 9.upgradable software and biopsy acupuncture functions. 10.dual power supply system :by adapter and liion rechargeable battery. 11.compact and light weight (net weight less than 4 kgs),easy to carry and outdoor diagnosis