... and the product performance is reliable.Technical Parameters:Structure: portable and trolley, KJ-4001, 4002, 4003 and 4003( ... 64~96dB adjustable.Two probe ports, Trans vaginal probe, high frequency linear array probe and convex array probe are availableFocusing: Four sections ... case history, gender, age, 16 body marks (with probe), full-screen character note, real-time clockPuncture guide: The ...