Physical & Power Front panel: Plastic RAM / ROM: 2GB / 8GB Display: 10 Inch IPS LCD Screen: 10 Inch capacitive touch screen RS485 Port: Support Relays Out: 1 Bell in: 1 Alarm Input：8 Microphone: Dual microphones,-26dB Speaker: Quad speakers, 8Ω / 2W Ethernet Ports: 1xRJ45, 10/100Mbps adaptive 802.3af Power-over-Ethernet 12V DC Connector (if not using PoE) Tamper Resistant: Support Installation: Wall-mounted & Desktop Dimension: 278x165.1x22.8 mm Working Humidity: 10~90% Working Temperature: -10°C ~ +45°C Storage Temperature: -20°C ~ +70°C Touch Screen Display Display Mode: Normally black, Transmissive LCD Size: 10inch (Diagonal) Aspect Ratio: 16:10 Resolution: 1280x800 Contrast ratio: 900:1 Luminance: 290 cd/m² Viewing Angle: 80° Left, 80° Right, 80° Upper, 80° Lower Touch Screen: Projected capacitive Audio SIP v1 (RFC2543), SIP v2 (RFC3261) Narrowband audio codec: G.711a, G.711μ, G.729 Broadband audio codec: G.722 DTMF: In-band, out-of-band DTMF (RFC2833), SIP Info Echo Cancellation Voice Activation Detection Comfort Noise Generator Automatic Gain Control Video Streaming formats: H.263 & H.264