Zmodo 4Channel 960H Video DVR Security Camera System W/ 4 Outdoor 700TVL Hi-Resolution Day/Night CCTV Surveillance Cameras with 1TB Hard Drive 700TVL High Resolution Cameras with IR-Cut Built-in Recording at 960H (960x480 pixels), HDMI port for high definition display Instand email alert with photo if activity detected When everyone else is asleep, our cameras are watching closely 1TB hard drive allows for 24/7 recording over 32 days