SystemMain ProcessorEmbedded ProcessorOperating SystemEmbedded Linux OSNetwork ProtocolUDP; TCP; IPv4; RTSP; SIP; RTPBasicScreen TypeCapacitive TouchscreenDisplay Screen4.3" TFT displayScreen Resolution480 (H) × 272 (V)Audio CompressionG.711A; G.711U; PCMAudio Input1 channelAudio Output1 built-in speaker and 1 receiver speakerAudio ModeTwo-way audioAudio EnhancementEcho suppression/digital noise reductionAudio Bit Rate16 kHz, 16 bitFunctionCommunication ModeFull digitalInformation ReleaseText messages can be received and viewed on the indoor monitorElevator ControlYou can control the elevator through the indoor monitorDND ModeDo not disturb period can be set.Number of ExtensionsApartment: 4; Villa: 9Wi-FiYesWireless StandardIEEE802.11b; 802.11g; 802.11nWireless Frequency Range2.4 GHzPortAlarm Input4 channelsAlarm Output1Network Port1 × RJ-45 10/100 M self-adaptive Ethernet portPerformanceCasing MaterialABSGeneralAppearance ColorWhitePower Supply12 VDC, 1 A; standard PoE (IEEE 802.3af/at)Power AdapterNot includedInstallationSurface mountAccessorySurface mount bracket, alarm ribbon cable, and power-supply pins are providedProduct Dimensions136.0 mm × 140.0 mm × 25.5 mm (5.35" × 5.51" × 1.00")Operating Temperature–10 °C to +55 °C (+14 °F to +131 °F)Operating Humidity10%–95% (RH), non-condensingPower Consumption≤4 W (standby); ≤6 W (working)Gross Weight0.21 kg (0.46 lb)