In our loud and busy world a moment of silence has become a scarce and almost luxurious experience. The pebble like device you can see here lets you reclaim that silence for your home. It turns your window into an advanced  noise cancelling system that allows you to eliminate and/оr control the sounds that pass through. With its concentric broadband antenna rings, it harvests the energy of electromagnetic noise from Wi-Fi, and similar signals and this way also reduces the level of e-smog pollution in your environment.