Wire Free systems, on the other hand, include a specific DVR and wire free security cameras. These cameras are battery powered and only start recording when they detect motion. Both types of systems typically offer the same standard features as a wired systems, including HD quality recording, infrared night vision, and motion detection sensors. Wireless home camera systems offer numerous benefits over wired security systems, such as flexible installation options. 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. Wire Free systems, on the other hand, include a specific DVR and wire free security cameras. These cameras are battery powered and only start recording when they detect motion. Both types of systems offer the same standard features as a wired systems, including HD quality recording, infrared night vision, and motion detection sensors. They also use DSSS Direct Sequence Spread Spectrum technology to ensure a secure connection while minimizing interference from competing wireless devices.