The IF-1 Adapter serves as an interconnection device between a Louroe electret condenser microphone and other audio sources such as a DVR, computer sound card, IP Network cameras with audio, and video servers with audio. It contains a terminal block to receive wiring from the microphone, a jack for 12 Vdc power input, RCA jack for connection to a DVR, a 3.5mm jack for connection to a computer sound card and a variable control for adjusting gain into the sound card to prevent overdrive. RCA cable for connection to a DVR is included. 12 Vdc power supply, for applying power and driving the microphone is included. List Price: $139.00		Specifications Instructions Wiring Requirements Decal Notice Audio Interface w/ DVRs, IP-Network Cameras, Video Server - One-way Listen IF-1 IF-2 IF-4 IF-8