With the M218 operating unit, the Revox multiroom system can be activated with a single press of a button - including volume control and station checking. The Gira M217 display unit is the perfect complement to this, as it expands the unit's control options. The display shows information on Revox multiroom system source currently being played. And in addition to selecting a track and station, up to four timer functions can be programmed in each room. Both devices can be used individually. Virtually all important functions can also be controlled with the M217 by using the multi-function buttons. Ideally, the Gira M218 operating unit and the Gira M217 display unit are combined in a 2-gang cover frame to produce the Gira control unit M217/M218.