1This is a wired system, not wireless. 2Complete system do not need Internet to work.However, an Internet will be necessary if you wish to use mobile for remote view. The item "ZOSI 8CH H. 265+ 5MP Lite DVR 1080P Outdoor Home Security Camera System 1TB HDD" is in sale since Saturday, April 3, 2021. This item is in the category "Consumer Electronics\Surveillance & Smart Home Electronics\Home Surveillance\IP & Smart Security Camera Systems". The seller is "junqingkkwt5571" and is located in shang hai. This item can be shipped worldwide.