The UP loudspeaker is used as an extension for the radio set for a more voluminous sound. The central plate for acoustic signaling devices can be used as an alternative cover in other colors. The loudspeaker can be combined with any frame from the System M family. The loudspeaker has hard-wired connection cables. The product can be installed in standard switch boxes. The dimensions are 70.8mm x 70.8mm x 41.1mm. The installation depth is 29mm. The protection class is IP20 and IK03 as impact protection. The loudspeaker is free of SVHC (substances of very high concern) and meets the RohS and Reach requirements. The System M series is based on 4 different surfaces and materials and can fulfill every customer request with 9 different design variants and over 280 functions.