The CDR-1F is a flush-mount remote control panel for use with the Cloud DCM-1 Digital Control Mixer, fitted with the same alphanumeric display as the DCM-1, with menu navigation being by five push buttons. When installed in one or many of the DCM-1's zones, the CDR-1F provides the user and installer with localised control of a zone. A zone may have one CDR-1F, more than one, or none at all. Functions include selection of audio source and control of audio level; additionally, any enabled zone groups of which the zone is a member may be activated locally. For Weatherproof/Outdoor Fittings Please See: http://www.cef.co.uk/catalogue/categories/weatherproof-wiring-accessories-easy-seal