GW Security 8 Channel DVR 1TB HDD CCTV 5MP Video & Audio Surveillance Security Camera System - 4 x 5MP HDTVI Weatherproof Microphone Dome Cameras 5.0 Megapixel (2592x1920) Ultra HD: Capture high-definition True 5MP HD 2592x1920p video 150% increase over 2MP 1080P cameras, giving true color and sharper image Built-in Microphone for Audio Surveillance: Each camera built-in microphone for audio recording, this can provide you with more information (such as voices) should an intrusion ever occur. It will also expand your security coverage beyond the camera's field of view (FOV) and can help assist with interpreting events (even if they occur off-screen) 24/7 Live Surveillance/Record: Video and Audio footage is saved to its pre-installed 1TB Hard drive (Expandable up to 16TB) and can be recorded as long as 10-15days by continuous recording at Highest Resolution, Longer Recording Times Up To 90+ Days Available with Use of Motion Detection and/or Lower Resolution Settings/or add another hard drive. Smart search and playback to save your time. Intelligent motion detection email alert and easy USB Backup Feature for Peace of Mind. Remote Access Anytime Anywhere: View and Record in Widescreen with Remote Viewing on iPhone, iPad and Android Devices by just scanning the DVR QR code (with included GW Security app). Remote Access on Windows PC and Apple Mac Using Standard Browsers (IE, Firefox, Chrome, Safari) & Included GW Security Surveillance Pro Desktop Software. Professional Customer Support: One year warranty (free parts replacement) and lifetime US free technical support. This system is with 8 channels 5-In-1 dvr recorder, so you can expand more cctv cameras to this security system if you need. Plug & Play Easy Installation. We also have free professional tech support to help you in every step of the process, which made your installation even easier and no need to worry about any difficult programming issues.