Available modelsDS-PEA1-21 Wired network10 M/100 M Self-adaptive Ethernet port Power supply12VDC Audio input1-ch Built-in Omnidirectional Microphone, Pickup Distance: 5 m1-ch 3.5 mm Audio Interface for External Audio Input Audio output1-ch 30 W Build-in Loudspeaker1-ch 3.5 mm Audio Interface for External Audio Output Alarm input2 Tamper-Prooftamper alarm Netowrk interface1RJ45,10 M/100 M/1000 M self adaptive Dimension(WxHxD)218 mm × 128 mm × 58 mm (8.58" × 5.04" × 2.28") Alarm output2 ProtocolTCP/IP, RTSP, SNMP, HIK-SIP,ONVIF BusRS-485 1, Half-duplex Frame rate25fps Intercom1-ch Built-in Omnidirectional Microphone, Pickup Distance: 5 m PSTN1 Resolusion1920*1080 Day/night switch modeIR Cut Filter Audio compression code rate64Kbps;16Kbps Camera2 MP HD IR Camera Sound pressure110dB, Sound Can be Configured Separately