Yes I can. In my house, I have installed a device in every outside wall that allows me to see through that wall at any time I desire. Its attenuation and dispersion are both virtually zero, and its frequency response across the visible portion of the spectrum is essentially flat. The device is cost effective and quick to install, uses very little power, and has a long service lifetime. It has truly been a blessing in our household. The nice man who sold us this device promised us that it would quickly change our life, and he was certainly right about that.
We can hardly recall the days when we were unable to see outside without leaving our house. We would recommend the device, or several of them, to anyone who has ever had a desire to see through walls. It is available at many retail outlets in any large town or city. It is usually sold under the generic name "window".
The device for seeing through walls (Window-1) has been upgraded to allow you to actually walk through walls. Whereas the "Window-1" was typically installed only on exterior walls, the "Window-2" may be installed on interior walls as well. The opaque feature (Shutting) allows privacy and security to be maintained when passage is not required. As a special expansion package the Window-2 can be equipped with a security subsystem (Locks) which prohibit unauthorized use by third parties. As installation is complex please contact qualified service companies to add "Window-2" to your home. Ask for it by name "Window-2" or as the techie geeks call it "Door."
Factory Aftermarket Options: Most purchasers of the device for seeing through walls (Window-1) find it desirable to install the latest aftermarket factory option of an apparatus to control outside visibility through the wall, a must have for those who desire more privacy in their home. This apparatus will control when the visibility is available to those who are outside the walls of the home and the degree to which the Window-1 device will be disabled to prevent unauthorized viewers from looking from the outside in. These come in a wide variety of types, shapes, colors, materials, and levels of reduced visibility. Some are designed to be installed on the inside and some are installed on the outside. Installation can be an easy DIY project, but there are any number of authorized installers available through most local home improvement retail outlets. You will find these aftermarket options, that are installed inside the Window-1 product, cataloged under such names as drapery, blinds, curtains, sheers, or shades. The options that are installed outside the Window-1 product are more limited in scope, and most often carried under the high tech name "Shutters".