The closed caption device/receiver is attached to an angled flexarm with a base and built-in cupholder that fits into the theater seat arm. If you have seat arms that do not have a cupholder you can order a CCR-100-C that comes with a clamp in place of the cupholder. The optics also reduces visibility of the display to other patrons. The unit displays the user-defined welcome message until the presentation starts. It then displays the closed captions delivered in the digital cinema package. The CCS complies with DCI and SMPTE draft standards and is designed to operate with any compliant digital cinema server.