CCTV systems are becoming common among businesses today. That is because it is easy for businesses to use CCTV DVR to monitor and record the activity of their employees and customers. CCTV cameras can record these people without them even knowing it, and transmit the footage to a specific place. Security personnel of the company can then review the footage that was captured by the wireless CCTV. It can be seen why CCTV systems are so valuable in businesses today.