Is now used for half a year, doing exactly what it should. Image is very good, the night vision function. Range is also fine. The WLAN and radio problems, I also have wireless at home, as most devices are, it send Fi or Bluetooth or other, their signals by radio, can of course times overlap a channel. On laptops, therefore you can change the radio channel, then there are no complications more. I would recommend this device without restriction. Therefore, please do not respond to the reports, the reports of problems with wireless. This problem can in fact easily eliminate. For this, the device can now really nothing.