Night Owl Security CAM-4PK-DM624-BA 4-Pack Hi-Res 600 TVL Indoor Security Dome Cameras with 50-Feet of Night Vision and Audio (Black) 600 TV Lines Resolution Dome Cameras Audio Enabled Cameras and Cables 50 ft. Night Vision & Facial Recognition Compatible With all Night Owl Systems 24/7 Technical Support 600 TV Lines Resolution Dome Cameras^Audio Enabled Cameras and Cables^50FT Night Vision & Facial Recognition^Compatible With all Night Owl Systems^24/7 Technical Support