7inch color LCD Resolution 1024 × 600, ROM 32 MB, RAM 128 MB, Audio compression standard G.711 U, G.711 A, Event capacity 200 alarm records, 2 MB RAM reserved for events, Linked doorphone capacity 17 IP doorphones, Network interface 1 RJ-45 10/100 Mbps self-adaptive, Working temperature -10 °C to 50 °C, Dimensions 200 mm × 140 mm × 23.6 mm, Power supply IEEE802.3af standard PoE, 12 VDC, Application environment Indoor, Weight: 0.325 KG.