Electro-Voice SYSTEM 2000 is a modular pro audio system designed for suspending loudspeakers overhead or mounting them on walls. It includes three suspension kits: the Mb100 Eyebolt Attachment Kit, the Mb200 Installation Kit, and the Mb300 Horizontal Array Kit. These kits allow for safe and easy suspension of System 2000 enclosures, providing a variety of mounting options for different applications.