The cameras and the NVR require the power supply to work. They are not Battery Cameras and power supply with wire. Wireless security cameras means the cameras connect wirelessly to a NVR. Wireless security cameras are designed for continuous recording, which requires them to be plugged in to a power source.
The item "SANNCE Wireless Wifi 8CH 5MP NVR 1080P CCTV IP Camera HD Home Security System US" is in sale since Monday, August 10, 2020. This item is in the category "Consumer Electronics\Surveillance & Smart Home Electronics\Home Surveillance\IP & Smart Security Camera Systems". The seller is "sannce2306" and is located in Monroe Township, New Jersey.This item can be shipped to United States.