Feature: Protable Bidirectional vascular doppler with LCD,displaying realtime bloodstream speed curve,built-in microprocessor. It can be used to listen the temporo-mandibular joints (They become noisy when they start to brake because of the bite problems), assist doctor to check the conditions of the joints and predict the result of treatment. Choose menu by pressing keys to start the detection, store 30 curves Handy key on the probe to freeze the curve and data and turn on/off the machine Choose different probes for different use (5, 8, 10 MHz). Automatic power off, special RS-232 port. Analyze the curve and data by V-LINK software. Colro box.