... manikin:Take the infant manikin and display device out from the suitcase, connect the manikin with the display. Then take the power cord ... , 220v, 500ma/6v adaptor to connect with the display. Plug the power cord into the 220V power source, the ... . Setting:After the connection, turn on the power of the display, press start key, setting the operational frequency at 100time/min ...