How much does this cost to the nearest dollar?

Auto-Track Camera XMARTO 2K Auto-Track PTZ Wireless Security Camera System Outdoor, 10CH 5MP Dual-WiFi NVR with 8X Rotate WiFi Security Cameras, 1TB Storage
10CH Auto-Track PTZ Camera System The WiFi camera system has an 10CH 5MP DUAL-WiFi NVR, and 8pcs of WiFi PTZ cameras that features Auto-Track. Mount the 10 cameras of different sides of your property to cover it all. The cameras automatically track people when they detect someone. Standalone WiFi Router in NVR The NVR has its own WiFi router inside. All cameras stream and record to the NVR via their own WiFi. This makes the surveillance system works standalone without Internet, and hassle

Price is $540.00
Price: $539.99