Electromagnetic Barrier

An electromagnetic barrier is a device made of materials that block or disrupt electromagnetic waves, such as radio signals, Wi-Fi, or other wireless communications. It works by absorbing, reflecting, or rerouting these waves, preventing them from passing through. This can enhance security by stopping unauthorized signals or reduce interference in sensitive environments. Think of it like an invisible shield that controls where wireless signals can go, using electromagnetic properties to selectively allow or block transmission in specific areas.