Feel secure while in or away from your home with this state-of-the-art Defender HD 8-Channel 1TB HDD, 1080p DVR Security System with 4 Dome Cameras. You can record and view from 8 channels simultaneously at any time of the day or night, thanks to the night vision. Record continuously with 1TB of storage and expand your view up to 8 cameras. With a 1080p resolution, this security system ensures you will always get crystal clear picture quality. In addition, you can also view your recordings on your mobile device using the free Defender app. Security System Features Video Resolution: 1080p, 30fps Night Vision: Yes, 30m (100’), with infrared lights Two-way Audio: Yes Sound / Motion Detection: Yes Zoom: 2x Remote Viewing via App: Yes Push alerts to Phone / App / Email: Yes Supports up to 8 additional cameras DVR Capacity: 1TB HDD Channels: 8 Video Outputs: 1 x HDMI, 2 x USB, 1 x VGA Storage: 1TB Video Outputs: 1 x HDMI, 2 x USB, 1 x VGA