... we are marketing:1, 4 wire CX and NCX system for villa and multi-appartment; ... system for multi-appartment; 4, Wireless system;7435 CX/NCX_C35+7162 CX descriptionFuction:1, Audio/video communication, 7'' ... set;5, Support two camera for 7435 NCX;6, Optional for memory inside.Data ... 1Vp-p 75Ω, PAL or NTSC.Packaging:7435 CX/NCX_C35Product Dimension: 265x130x35mmInner Package: 280x150x45mm,Carton Size ...