16-001840 is a part manufactured by CONEC, a German manufacturer of connectors, terminals, and components. It is a two-position, circular M16 connector, also known as an XLR connector. This type of connector is used in various audio/visual applications, such as connecting microphones, speakers, amplifiers, and other audio-visual equipment. The connector has a 2-pin design, and features a high-density design which makes it ideal for use in tight spaces. The 16-001840 is RoHS compliant and is rated for up to 5A of current.