ANNKE CCTV Camera Systems 8Channel 1080P Lite H.264+ DVR and (6) 1280TVL Outdoor Fixed Weatherproof Bullet Cameras, Email Alert with Snapshots, QR Code Scan to Remote View, NO HDD Advanced H.264+ compressionEnable H.264+, recording continuously for 900 hours with a 1TB HDD on normal conditions, however, H.264 takes 4TB HDD to achieve 900-hour long video. With the provided compression method, you have effectively saved 70$ on storage. Intelligent motion detection email alert with imagesSmart playback available with customizable searching area (needs an internal hard disk drive, it can't record or playback without hard drive, please search ASIN ON AMAZON: B01G72GAOE for 1TB Surveillance Hard Drive Disk) Quick remote accessThe camera can be accessed and controlled remotely to your whole surveillance via the APP on your mobile devices. Review and watch live videos from every corner of the world. Worry-Free WarrantyAll ANNKE products have passed CE & FCC, HDMI Senior Member certified and ISO 9001 certified. Easy-to-reach lifetime telephone and email support, 2-year warranty and 60-day money back guarantee. ANNKE Products supported by the world's largest monitoring manufacturer, used in major security projects more than 150 countries and regions, such as G20 Hangzhou Summit, Beijing Olympic Games, Shanghai World Expo, Philadelphia Peace Community in the United States, Safe City in Seoul, World Cup in Brazil, and Milan International Airport in Italy has played an extremely important role.