1. Usage VD-320 vascular doppler is used to detect arterial and venous blood flow velocity to assess peripheral vascular disease, feasible in andrology, urology, surgery surgical, microsurgery, orthopedics, vascular surgery,burns surgery and plastic surgery departments. 2. Features ? Sensitive special purpose probe ? Display real-time waveform, data and working parameters ? Both of AC and DC battery ? Auto power off ? Freeze display content on LCD ? USB to transmit the data to computer ? Output with loudspeaker and earphone 3. Option ? 5MHz waterproof vascular probe ? Instrument bag ? PC software ? Printer