Keep watchThe Swann SWDVR-44680H 4-Channel Full HD DVR Security Recorder offers high-resolution security system that you can use for your home, office or retail store.Security alerts & voice controlDownload the Swann app and get notifications and alerts straight to your smartphone. For added convenience, you can control your security system with Amazon Alexa or Google Home devices like Chromecast. Up to 1 TB hard drive means you can store whole year worth of Full HD videos and also save it directly to your Dropbox account.4-channelsYou can connect up to 4 cameras and keep an eye on every blind spots around your property.