Both types wirelessly trasmit data to a receiver connected to a security digital video recorder DVR recorder. Wireless security cameras, which can be used with most Analog MPX DVR systems, need to be plugged in, while a wire free security camera is powered by rechargeable lithium ion batteries. Another main difference is that wireless cameras are designed for 24/7 monitoring, while wire free cameras only turn on when motion is detected. One of the main benefits of using wireless / wire free security cameras is the flexibility of installation. They can be installed higher, or further away from your DVR without the need for costly cabling. They are perfect for long distance outdoor monitoring or detached buildings. Many wireless models include similar features of a traditional wired camera, including HD resolution, infrared night vision, and motion detection. Lorex offers two different types of wireless security systems wireless and wire free. Lorex offers two different types of wireless security systems wireless and wire free. Wireless systems use an Analog DVR. Wireless security cameras provide 24/7 monitoring and need to be plugged in.