8 Channel HD 4TB DVR & Grey Bullet Camera CCTV KitComplete with 8 Channel DVR, Cameras, Cables & System Power Supplies for 4 Cameras HD 2MP Resolution Viewing and Recording 4 x 2MP, Day/ Night, Weatherproof Cameras Intelligent Function, with Perimeter Intrusion Detection & Line Crossing Detection H.265 Video Compression for Efficient Storage Pre-Installed Premium Hard Drive Remote Monitoring via APP (Android / IOS) or PC Playback / Record / Remote View Simultaneously Continuous / Scheduled / Motion Record Modes USB Backup for Evidence Transfer Mouse Driven User MenuTechnical Specification:System: Operating System: LINUXVideo & Audio: Video Input: 8 Channel BNCAudio Input: 4 RCA InputsAudio Output: 1 Channel RCADisplay: Video Output: 1 x HDMI, 1 x VGA & 1 x BNCDisplay Split: 1/4/9/12Resolution: 1024 x 768, 1280×720, 1280×1024, 1440×900, 1920×1080, 1080 x 1440, 3840 x 2160Recording: Video/Audio Compression: H.265Resolution: 1080P @15fpsRecord Rate (Main Stream): 4ch 1080P recordingRecord