Night Owls E-1681TB is an advanced 16 channel 8 camera Security System that includes a pre-installed 1TB hard drive. The cameras are hi-resolution with 600 TV lines and 100FT of night vision capabilities (2 out of the 8 cameras include audio). Unlike other security systems Night Owl enables you to maintain your mobile lifestyle by giving you tools that allow you to remotely monitor your home or business with our exclusive Night Owl Pro App. Receive motion activated email alerts to your Smartphone when the sensors detect activity. Our products are fully controllable via your tablet and/or Smartphone device. The DVR easily connects to any TV or Monitor with the included HDMI cable. Night Owl products give you true 24/7 video security day or night around the globe. Key Features: 16 Channel Smart DVR with pre-installed 1TB hard drive HDMI Output for easy connection to any TV or Monitor 960 H Recording Capabilities 8 x Indoor/Outdoor 600 TVL cameras with 100FT night vision Bonus 2 Audio enabled cameras included No monthly fees 24/7 Phone and Web support at www.NightOwlSP.com