Main Processor: High performace embedded processor Operating System: Embedded LINUX OS Screen Type: Capacitive screen Display: 7-inch TFT screen Resolution: 1024 × 600 Video Compression: H.264 Audio Compression: G.711A/G.711U/PCM Audio Input: 1 channel all-direction microphone Audio Output: Built-in 1.5W loudspeaker Audio Mode: Support dual-way bidirectional talk Audio Enhancement: Support echo cancellation/DNR Audio Bit Rate: 16 kbps Communication Mode: Full digital Information Release: Support to receive and view notifications issued by center Leave Videos or Text Messages: Support DND Mode: Support to set DND period Sub-station Quantity: 9 Alarm Input: 6 channel (switch quantity) Alarm Output: 1 channel Network: 1 RJ-45 SOS Alarm: Support Casing: PC+ABS Appearance Color Power Suply: Standard PoE DC 12V 1A Installation: Wall mount Accessories: Default bracket Default alarm cable Dimensions:119.6 mm × 221.5 mm × 21.5 mm (4.71" × 8.72" × 0.85") Operating Temperature: -10°C to +55°C (+14°F to +131°F) Operating Humidity: 10%RH-95%RH Power Consumption: Standby≤4W, work≤6W Gross Weight: 0.35 Kg (0.77 lb) Power supply mode: PoE Storage: Support Micro SD, maximum memory capacity 32 G, standard memory capacity 8 G