... ATW,AGC,BLCAuto Electronic Shutter1/25 -1/10000sec , Slow shutter 1/2,1/4,1/8,1/12Optical lens2.8-12mm manual varifocal ... input, Normally Open/Normally Close modes adjustable; 1-ch output,1 RS232 interfaceVideo CompressionH.264 Main Profile, MJPEG/JPEG ... stream information overlay;OSD location is adjustableAudio CompressionG.726,G.711Data storageVideo , pictures and audioRecordingRecording set up to ...