-Outline Dimension (W*H*D): Faceplate: 150mm*150mm*3mm Back Box: 130mm*130mm*53mm Frame size: 135mm*135mm*55mm Overall size: 150mm*150mm*55mm-Network Connector: Standard RJ45 -TCP/IP Connection Speed: 100Mbps-Operation System: Linux 2.6-Input Voltage: DC12V/POE-Power Consumption: ≤6W Products features Slave Intercom Hand-free communication with master intercoms Emergency Call Dry Contact interface (Connect different devices for additional functions) Power Over Ethernet (POE) Easy to use, direct button to call master intercom Facilitate the rescue of person in case of emergency Equipped with call button, speaker and microphone Support WEB setting interface , support online upgrade General Specifications Flush Mounting Aluminum Finishing 16mm Opening for Call button 3mm Opening for Microphone Communication Protocol: TCP, UDP, RTP, ARP, IGMP, HTTP, SIP Camera: 720P Video Code: H.264 Audio Code: G.711 Operating Temperature: -20°C to +55°C Operating Humidity: 20%-93%