The kit includes four wireless 4MP high-resolution cameras with a range of up to 40m and high capacity 8700mAh lithium batteries. Features built-in infrared LEDs for night vision up to 12m, bright white spotlight LEDs for color night vision, and Thermal Detect Technology to help prevent false triggers. It also includes a built-in microphone and an external speaker for two-way communication. The NVR includes a built-in 1TB HDD and supports FTP storage or Dropbox Cloud Storage to safeguard your data, and push notifications to send alerts to your phone. The NVR has support for up to 8 channels allowing you to add cameras to cover your entire business or property. Watch live motion-activated video or playback video on your HDTV or LCD monitor via HDMI, or log in remotely via your Apple or Android compatible Smartphone or Tablet using the free app. Connecting your Smartphone is made easy using Peer-to-Peer (P2P) technology and scanning a QR code with the app.