NO HASSLE UPGRADE: Have an outdated DVR system with no audio? Use your current DVR cabling and easily swap out the cameras (sold separately) and DVR to add 2-way audio. No older system, no problem! Use the cables we provide to get everything set up. 2-WAY AUDIO: Sometimes seeing what’s occurring isn’t enough. With 2-way audio, you can hear everything you see and make your voice heard using our free mobile app, even when you’re away. PRIVATE DATA WITH SECURE CONNECTION: Your privacy matters. All recordings and data are stored on your recorder’s hard drive via a secure wired connection (CCTV) with no Internet required. You control who has access to your data. ADD WIRED BNC CAMERAS: Customize your coverage by adding up to 16 compatible Night Owl 2-way audio 4K wired BNC cameras (FTD8 series) to your wired recorder. ADD UP TO 4 Wi-Fi DEVICES: Instantly expand your viewing area by adding up to 4 compatible Night Owl 4K Wi-Fi devices. Upgrade your security with this 4K 2-Way Audio DVR, designed for reliable protection and easy communication. Replace your existing DVR using current cabling, or start fresh with a simple setup that supports compatible wired and wireless cameras (sold separately). Use the free mobile app to see, hear, and speak to visitors, receive motion alerts, and access recordings anytime. Video is securely stored on the included 2TB hard drive with no subscriptions or hidden fees. Expand your system with compatible wired, Wi-Fi IP, and doorbell cameras for complete coverage. What’s Included: 1 × 20-Channel 4K Wired DVR with 2TB Hard Drive Power Adapter 6 ft HDMI Cable RJ-45 Ethernet Cable USB Mouse Support Materials