1)Charging mode: wireless. 2)The effective transmission distance of WiFi connection (between the main unit and the particular control software) is not less than 10 m (in an open area). 3)Support full-screen display. 4)Image flip function. 5)8-segment TGC adjustment. 6)Many parameters are adjustable. 7)Cine-loop function 8)Storage function of DICOM file 9)Working mode: B, 2B, B/M, C, PW 10)With the measurement functions and software package that can meet the requirements of clinical diagnosis.