How much does this cost to the nearest dollar?

ANNKE 16CH 5MP Lite CCTV System with Audio/Mic, 5-in-1 H.265+ Surveillance AI DVR and 8 × 1080P Weatherproof Cameras with Smart Dual Light, Human/Vehicle Detection, Color Night Vision, 2 TB Hard Drive
The Cost-Effective One-Stop Security System This is not an ordinary security system set, but an upgraded kit that includes 8 finer 1080P cameras with premium built-in Mic and dual-light function and a 5MP lite DVR that outshines other DVRs. More Convenient - Flexible Night Modes 3 switchable night modes smart light mode, white light mode, and IR light mode. Choose your preference for your all-night-long safe and sound. (Smart light mode is the default.)

Price is $400.00
Price: $399.99