Hello,
A wireless set-up would require your cameras to be powered as well, and you could have local runs to outlets instead of them all going back to your recording device. Generally speaking, you would want to utilize a combination of both wired and Wi-Fi cameras. Using the Wi-Fi cameras for those hard to run places. The reason I saw this is because wireless cameras will require wireless router, extenders, etc and is not as consistent as a hard wire connection.
Please reach out to us at 866-573-8878 option 2 and we can go over the wide variety of options that are available to you at security camera king.
Thank you and good luck!