Processor: High-Performance Embedded SOC Processor Operation System: Embedded Linux Operation System Camera: CMOS Low Illumination 1.3 MP HD Colorful Camera Video Compression Standard: H.264 Resolution: 1280 x 720 Video frame rate: 25 fps 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 Ethernet: 10/100 Mbps Self-Adaptive Ethernet Network Protocol: TCP/IP, RTSP Internal Card Reader: Built-in IC Card Reader Exit button: Exit Button for Opening the Door Door Magnetic Detection: Detects Door Magnetic Status Light Supplement Mode: IR Supplement Alarm Input: Door Magnetic Alarm, Tampering Alarm Network Interface: 1 RJ-45 10/100 Mbps Self-Adaptive Ethernet Interface RS-485: 1 RS-485 Half-Duplex Port I/O Input: 4, I/O Output: 1 Indoor Station Access Amount: 4 Material: Aluminum Alloy Power Supply: 12 VDC/24 VDC, Power Over Network Cable (DS-KAD606, DS-KAD612) Power Consumption: ≤12 W Certification: FCC, IC, CE, C-TICK, ROHS, REACH, WEEE Working Temperature: -40° C to +60° C (-40° F to 140° F) Working Humidity: 10% to 90% IP Protection Level: IP65 Dimensions(L × W × H): 182 mm × 100 mm × 33 mm (7.17" × 3.94" × 1.30")