DPM-D271TMD-1-1. Parts and FunctionsCALLUNLOCKTALK/MONIN-USEHome ScreenLED indicatorUNLOCK buttonCALL buttonTALK/MON buttonSpeakerConnection PortVentilation VentMounting HookMounting HookMicrophone1 2 3 4 5 6ONDIPSL1BT1BT2EHGNDVDL2MonitorAutoMonitorby SelectMemoPlaybackAlbum MultiMediaUser SetupIntercom Intercomby Namelist2. Monitor Mounting145~160 cm1. Use the screws to fix the Mounting Bracket on the wall.(accessories include a Bracket, two 4X25screws (use to fasten the Mounting Bracket), 2 wire cables (use to connect with Monitor)).2. Connect the system correctly. then hang the Monitor on the Mounting Bracket firmly.User's manual