While the cameras for this system connect back to the NVR recorder wirelessly each camera does still need power and comes with its own power adapter so that you can plug them into a normal wall socket or power board and power them locally without having the cables running all the way from the NVR to the camera. Like the Swann GuardianEye this product has a bit more bling. Larger Hard Drive (1TB) a wider 75° Angle of view wireless cameras can integrate with 7400 series NVR and better night vision. Using the Free Swannview App connection is quick and easy. You can view the cameras when you are at home away or even overseas. See and listen to the cameras receive alerts for motion detection and view recorded footage. The footage is stored locally on the recorder therefore not using up your internet data and speed.