DVR with VGA,4-channel, H.264 2 channel alarm input, 1 channel ... ,Adjustable image definition 3. Adjustable frame from 0.1f/s to 25f/s 4. 2 channel alarm input, 1 channel alarm ... ohmVideo Output2 Channel, BNC, 1.0V p-p/75 ohm, VGA x 1Audio Input2 Channel, RCAAudio Output2 Channel, RCAAlarm Input2 Channel ...