Chime / door bell for building automation KNX;6 individual MP3-files can be uploaded via ETS;12 pre-defined tones/melodies;3 binary inputs;10 input objects and 16 scenes can be configured;External loudspeaker can be connected;Small external loudspeaker included in delivery;Adjustable volume level;No auxiliary supply needed;Day/night mode function;Mute function;Clearly structured ETS;Easy handling and mounting;Flush-mounted fitting;Compact housing;Can bei installed behind any kind of blind cover or also behind a switch/pushbutton in a long mounting box!