Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: When you mount the cameras, do you run wiring to the DVR or how do the cameras operate?
Document: Very easy install, and sharp pitcuresI reccomed this product as it was very easy to mount the cameras, and easy to  set up the DVR.No problem with programing
I take my security pretty seriously. Be it cyber security, home security, identity theft security, etc, etc...I've taken proactive steps harden myself and my family as a target. For that reason, I've always wanted to have a robust home video surveillance system. Having bought my first house (been a lifelong renter until then) a few months back, I figured now was the time. So, my research began.Home surveillance seems to break down between two camps: IP cameras that operate over your home network...or CCTV (Closed curcuit TV) surveillance.
"If you don't require this feature the unit appears to operate normally. It could not have been a "typo", it was obviously false advertising.
The cameras were extremely easy to conceal due to their size and the fact that they were painted black (perfect for extra concealment at night! ).The DVR was very small and not eye catching at all making it not distracting at all if added to an already existing entertainment center(which was the case for this setup) or really any location for that matter.Video:The video quality is amazing during the day and even more-so during the night! I will even go as far to say that these cameras see better at night than they do daylight.
You can also set the amount of time that the camera records for after detecting motion. There is a setting that, when turned on, will sound an alarm(a beep sound) every time a motion event is triggered on one of the cameras. With its own ethernet jack, you are able to tell the DVR to send you an email whenever it detects motion.I'm going to stop there as there are still many many included features!Summary:Anyone who purchases these cameras will not only be satisfied, but I am convinced that they will also be down-right impressed!
I would give the DVR itself 5 stars for recording, playback, and searching. It really is that good.The cameras included with the Defender system are simply ok. Not great. Not bad. Just ok. The clarity is pretty decent, the IR illumination at night is acceptable, but the color accuracy is lacking. Brown looks blue, gray looks green, etc. They'll do a good job of detecting movement and recording the event...but getting an accurate description of people and/or vehicles could be challenging.
To get around these weaknesses, I use a PPTP VPN server (A spare DD-WRT router I had lying around). That way my DVR is behind a much stronger password, and the traffic is encrypted.Overall, it's a good system, especially if you want to use it as a stand alone system in your house that you will check in the event that something happens. For a few more dollars, you can get better performance by getting better cameras. I'd recommend buying the DVR by itself and getting the cameras separate.
They routinely get pretty solid reviews and their systems seemed very well integrated. I bought the one with the four cameras included because I wanted to use a different camera than the one that is included (more on that later).While it is fairly time consuming to setup all the cameras and string the wires, the setup of the DVR system itself is pretty straight-forward. The DVR and its corresponding user interface is VERY good. It's quite intuitive and simple. Searching for events during playback is easy and quick, and there are multiple options for live viewing.
The Sharx cameras seem to be extremely capable, get great reviews, and their customer service is reputable. They appear to be the best IP Cameras out there, and I strongly considered them...but I ultimately decided to get a CCTV system for several reasons. Primarily of which was cost. I wanted 5 cameras, and with the Sharx running ~$400 each...it was prohibitive for me. But, if you have only 1 or 2 spots you want monitored, definately give the Sharx cameras a look.I eventually decided to go with this Defender DVR system for my particular situation.
I not only would recommend these to a friend, but I HAVE recommended these to a friend and I intend to purchase my own system when I buy my new home within the next couple years.Edit/Addition:I forgot to mention that the system does NOT require a computer in any way in order to set it up or run it. It never has to be connected to a computer (or the internet) in order to function properly.
Answer: Yes each camera has a wire that goes to the VCR