Louroe Audio Monitoring IF-4 Four zone audio interface adapter designed for connecting up to four Louroe microphones with a DVR, PC sound card or other recording device that has multiple audio inputs. The input side of the IF-4 has terminal blocks for receiving the wiring from the microphones. The output side has two types of output: RCA type - For connection to a DVR with RCA audio inputs. 3.5mm type - For connection to a DVR with a 3.5mm audio input or to inchline in inch of a PC sound card. The IF-4 also contain individual inchaudio out control inch potentiometers for audio gain adjustment. Output from the Louroe microphone can be amplified to 10dB. A 12Vdc power supply (included) provides power to the Louroe microphone.