Feel free to ask as we have many years of experience in CCTV and can certainly help. Smartphone App:Swann Security App. DVR-4685 4 Channel Digital Video Recorder. Audio Input:RCA x 1. Audio Output:RCA x 1.

Feel free to ask as we have many years of experience in CCTV and can certainly help. Smartphone App:Swann Security App. DVR-4685 8 Channel Digital Video Recorder. Audio Input:RCA x 1. Audio Output:RCA x 1.