NO HASSLE UPGRADE: Have an outdated DVR system with no audio? Use your current DVR cabling and easily swap out the cameras and DVR to add 2-way audio. No older system, no problem! Use the cables we provide to get everything setup. 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. IMMEDIATE ALERTS FOR FAST RESPONSE: Instantly receive key alerts to your mobile device when your cameras detect humans and vehicles as they arrive and depart. PRIVATE DATA WITH SECURE CONNECTION: Your privacy matters. All recordings and data are stored on your recorder’s hard drive via secure wired connection (CCTV) with no Internet required. You control who has access to your data. MAXIMIZE YOUR SECURITY COVERAGE: Need more coverage for your home or business? Easily add our compatible wired, Wi-Fi IP and doorbell cameras to your recorder to boost your viewing area. (Maximum number of cameras will vary by model) "When life gets hard, make your security easy. Introducing our new 4K 2-Way Audio DVR Security System. With secure app-based Bluetooth setup, there is no need to connect a TV or monitor for setup or viewing (optional). Easily set up the system right from the convenience of your mobile device. Your 4K cameras have full-color day viewing and full-color night vision up to 100 ft., which provides colorful recordings that capture every detail. With a bright built-in spotlight, you can light up the dark and ward off unwanted guests. For situations where seeing is not enough, easily make your voice heard. With 2-way audio you can listen and talk with anyone who approaches, making your presence known. Still not enough? Use our preset voice alerts and booming camera siren to shout a warning when a suspicious stranger nears. You will receive key alerts to your mobile device for important matters, such as people and vehicles as they arrive and depart. All recordings and personal data are privately stored on the recorder’s hard drive for secure access with zero costs. Your privacy matters and your recordings and for your eyes only. Built for outdoor use, your cameras can handle anything mother nature throws their way, from extreme heat and cold, to rain or sleet. Use them indoors or outdoors to cover what you want, when you want. Need more coverage? Easily add our compatible wired, Wi-Fi IP and doorbell cameras to your recorder to boost your viewing area. This system is a one-time purchase and there are no hidden costs. Use our free mobile app for iOS and Android Smart Devices to stay connected and easily access your recordings with no fees. What's Included: DVR: 1 x 20 Channel 4K Wired DVR with 2TB Pre-Installed Hard Drive 1 x DVR Power Adapter 1 x 6 ft. HDMI Cable 1 x RJ-45 Cable (Ethernet) 1 x USB Mouse 1 x Support Material Packet Wired BNC Cameras: 9 x Wired 4K BNC Deterrence Cameras 3 x Camera Power Adapters 3 x 4-Way Power Splitters 9 x 60 ft. V