... Dynamic receiving focusl DFS: Dynamic frequency scanning frequency range:2.0-12.0Mhz, 4 kinds of scaning frequeniesAdvantagel Embedded computer platform ... 0MHz, multi-frequency)l 3.5MHz R20 cardiac probe (2.0/5.0MHz, multi-frequency)l Trolleyl Jet printer, Laser printer ... video recorderRelative extended portsl VGA, S-Video, TV video portl USB2.0 port, 2G saving cardl RJ-45 network portl Multiple kinds ...