Night Owl"s CAM-2PK-DM624-BA is a 2 pack of Black indoor hi-resolution security Dome cameras that provide clear and crisp images at 600 TV lines of resolution. These cameras will produce a night vision image up to 50FT away in complete darkness and will allow for facial recognition up to 50FT away. They have an IR-Cut filter that delivers high quality and clear crisp day or night vision images. In addition, both cameras come equipped with a built in microphone that will record audio up to 20FT away. Key Features: 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 Support600 TVL Cameras with IR-Cut Filter: Each Indoor Dome Camera comes equipped with an impressive 600 TV lines of resolution and smart IR-cut filter that produces clear and crisp images both day and night. The cameras are engineered for indoors only and can be mounted either to ceilings or walls.50FT Night Vision and Facial Recognition: The cameras come equipped with 50FT of night vision giving you the ability to mount in complete darkness and still view clear images. In addition to having detailed night vision images the cameras offer up to 50FT of facial recognition during the day. Audio and Video Clarity in one Cable. Each camera is equipped with an audio microphone embedded into the camera system that allows for 20FT of audio recordings. The included 60FT of cable per camera is 1 run of Video/Audio and Power for easy installation. Compatible with most Night Owl and Industry Standard DVR"s with RCA audio inputs. Easily Connects to your Night Owl DVR system: Each camera comes equipped with easy connect 60FT of cable to quickly expand your Night Owl DVR system. All Night Owl cameras use industry standard BNC connectors and are compatible with all other DVRs in the marketplace that utilize BNC video connectors.