Additional Details ------------------------------ Product description: NOCTURNAL 4 SERIES SECURITY CAMERA. Your business deserves the best security. This 16-channel Nocturnal 4 Security System will deliver just that. With smooth Real-Time 4K recording, next level Color Night Vision, Smart Motion Detection, Listen-In Audio, ePoE technology, and IP67 rated weatherproof metal exteriors, our latest Nocturnal 4 Dome Security Cameras have everything and more to provide the highest level of surveillance for your business around-the-clock.