Additional Details ------------------------------ Product description: Professionally protect your property day and night with this 16-channel NVR System featuring Nocturnal IP Security Cameras. Along with real-time 30fps 4K recording, Color Night Vision, and Smart Motion Detection, these security cameras include listen-in audio, which will add a whole new dimension to your monitoring. These features make this system an incredibly versatile security solution perfect for a large home, small business, office, or commercial facility. *When Smart Motion Detection is enabled, the camera's recording frame rate is reduced from 30 frames per second to 20 frames per second. **Audio recording is disabled by default. Audio recording without consent is illegal in certain jurisdictions. Lorex Technology does not assume liability for any use of its products that fails to conform with local laws.