1.4CH video/2 CH audio 2.D1,HD1,CIF playback 3. ... /CIF selectableVideo Frame rate1ch&2ch D1 real time recording, 3ch&4ch CIF real time recordingRecording Fire recording, time recording, alarm recording ... : -30C to 70C,Storage humidity<90% Dimensions180mm*145mm*45mm 1KG 4ch h.264 Vehicle DVR Series