This kit will give you 2TB of storage

For 2TB hard drive: Almost about 26 days（4MP）,it depends on the resolution. If you want to if you set recycle record for this system: Please kindly go to System Setup--Channel Setup--HDD Setup to check 'Overwrite',then the system will automatically cover the earliest video file and continue recording.

Yes, ZOSI C290 can accurately detect persons and vehicles from other objects and reduces false alarms caused by animals, insects and leaves.

You can add more 4pcs cameras.

We’ve improved the volume of the speaker so that it can be used as a siren, which is loud so you can use it to ward off intruders. Control the Siren feature from the ZOSI app.

The camera can work without an NVR. Yes, the C290 security camera system supports 24/7 non-stop.

ZOSI C290 PTZ Wifi camera can rotate 355°horizontally and 140°vertically, covering a lot more areas and leaving no blind spot. It also supports automatic cruising, locks on and tracks people on the move automatically. You can control this wireless home security camera and preset point cruise through the ZOSI Smart App.

Yes, there is a 2TB hard drive already installed inside the NVR.