Product picture - Meridian Technologies DigiCool FR-IS-DV-2ST 1-Channel Uni-Directional Video & Bi-Directional Audio Receiver for Aiphone IS Series Network Door Station Meridian, Technologies, DigiCool, FR-IS-DV-2ST, 1-Channel, Uni-Directional, Video, &, Bi-Directional, Audio, Receiver, Aiphone, IS, Series, Network, Door, Station Click the image to close this page