Is this wireless or does it have to stay plugged into an outlet?（Wansview W7）

Hi,
This is Wansview Support.Thank you for your question.
I am sorry for the confusion.
"Wireless" here means the camera does not need to be connected to by Ethernet cable, but WiFi, that's wireless.
It needs to be powered on with a power cable all the time.
So please plug the camera in, connect it to 2.4GHz WiFi, and keep it plugged in when you use it.
Please feel free to contact us if you have any questions.
Best Regards,
Wansview Support