Our world is methodically getting rid of wired gadgets: phones, computers, and even some kitchen appliances. And now, the charging becomes wireless as well. Does it not sound great? All you need to do is to lay your phone on a special pad or another surface with built-in panels. Three out of four mobile phone users know about wireless charging, but only 16 percent use the technology. As a result, a question arises—why is the number so small? Is it not the easiest way to charge a gadget?