Description : VStarcam C37-AR Dual Antenna 720P IP Wireless IR Night Vision Smart Camera with AF117 Door Sensor + AF123 PIR Detector + AF104 Remote Control Features : ASK linkage alarm function. Dual antenna. Specification : System OS Embedded Linux OS system security Three level user authority management online users support 4 online visitors simultaneously DDNS Free DDNS Control protocol ONVIF 2.4 protocol, high interoperability Processor Hisilicon processor,built-in ARM926 @Max. 440MHz and a high-speed video co-processor. Reset Long press for 15 seconds to restore back to factory settings Collection Image sensor 1\/4inch 720p Progressive scan CMOS sensor CMOS support AWB, AGC, BLC sensor size 3.84mmx2.16mm SNR ≥39dB Minimum illumination 0.8Lux\/F1.4 (colourful model ),0.3Lux\/F1. (B&W mode) Lens\/viewing angle 3.6mm@F1.4\/56.14\u02da Night vision Dual IR-CUT filter auto switch, 9pcs 850nmΦ5mm LED,10m IR distance IR control IR turned on: night vision view enabled, infrared Ray, ICR auto detect. IR turned off: night vision disabled, infrared ray off, ICR stay in day view mode. Video Compression Format H.264 Main Profile\/H.264 Baseline Profile\/MJPEG\/JPEG Baseline Video coding process Multi-stream: 720P\/24fps+VGA\/30fps+QVGA\/30fps+720P @1fsJPEG snapshot Resolution 720p\/VGA\/QVGA Bit Rate CBR\/VBR, output bit rate range: 128-4096kbps Frame rate 25fps Picture Adjustment Contrast, brightness, saturation, chroma are adjustable. Audio Input Built in -48dB Microphone Output Built in speaker(8Ω1W) Sampling frequency \/ width 8KHz\/16bit Compression format ADPCM\/32kbps Network Interface 10Base-T \/ 100Base-TX, RJ45 connector Network Protocol TCP\/IP,HTTP,TCP,UDP,SMTP,FTP,DHCP,DNS,DDNS,NTP,UPnP,RTSP,P2P,ONVIF etc. WIFI WiFi802.11b\/g\/n Antenna 3dBi antenna, stronger si