System Parameters Memory 128 MB Flash 32 MB Operation system Embedded Linux Operation System Display Parameters Display screen 7inch Colorful TFT Screen Display resolution 1024×600 Operation method Capacitive Touch Screen Audio Parameters Audio input Built-in Omnidirectional Microphone Audio output Built-in Loudspeaker Audio compression standard G.711 U Audio compression rate 64 Kbps Audio quality Noise suppression and echo cancellation Network Parameters Wired network 10/100 Mbps self-adaptive Wireless network Wi-Fi 802.11 b/g/n Network protocol TCP/IP, SIP, RTSP Network interface 1 RJ-45 10/100 Mbps self-adaptive Alarm input 8-ch alarm inputs Relay output 2 TF card Max to 32 G, SD 2.0 or lower version RS485 1 General Power supply IEEE802.3af, standard PoE 12 VDC/1 A Power consumption ≤ 6 W Working temperature -10 °C to 55 °C (14 °F to 131 °F) Working humidity 10% to 90% Dimensions 200 mm × 140 mm × 15.1 mm (7.9″×5.5″×0.6″) Weight 683 g (with packaging) 355 g (without packaging)