... / 1CH RCAAudio Input/Output4-CH Input /2CH Output, one in front broad and one in backAudio ... compressionADPCMAlarm Input/Output6 alarm input / 2 alarm Output, Max:12VRecordingManual, Schedule, Motion Detection, WatermarkGPS Vehicle ... ControlIR Remote ControlSoftware UpgradeUSBUSB2.01E-SATA1Power Input/Output 8—36V Input, 12V Output, 500mAComsumption12W~30WCamera's remote power supplySupply ...