Wireless communication system is common in our daily life. We use our cell phones every day, but there are so many cables around us. Some people want a wireless world and now their dream has come true. A new technology called wireless charging has been invented and is becoming more and more widely used. However, even though it is becoming more and more popular, it still has some problems. There are many reasons why wireless charging should not be used currently: it has certain limitations, it is not efficient, and it has bad influences. Wireless charging, which can be called inductive charging, uses electromagnetic fields to transfer energy between two unconnected objects. It was invented by scientists at MIT. They transferred 60 watts with about 40% efficiency over two meters, which allowed a light bulb to light (Kurs 83). From this time on, this technology entered a phase of rapid development. Many companies have joined research into this new technology, such as Intel, Nokia and Apple. Recently, people are crazy about a world without cables, but it comes with some potential risks. Wireless charging technology is not yet well developed. It still has certain limitations. For starters, it's not mobile. In other words, you have to put it on a loading panel. For example, I have an electric toothbrush that uses wireless charging. When I need to charge it, I have to put it on its stand and I can't move it while charging. Therefore, the reason for using wireless charging in the toothbrush could be a hook that could make more people interested and buy this toothbrush. Another limitation of wireless charging is that most of our older equipment cannot use this technology. If you want to use wireless charging,...... middle of paper ...... companies that sell the equipment do not inform customers of the potential risks. Works Cited Baarman, Dave and Joshua Schwannecke “Understanding Wireless Power.” Ecouplé.com. Ecoupled. December 2009. Web. April 5, 2014. Kurs, Andre., et al. “Wireless power transfer via strongly coupled magnetic resonances.” Science 317 (2007): 83-85. Print.Lin, James C. "Wireless Power Transfer for Mobile Applications and Health Effects." IEEE Antennas and Propagation Magazine. 55.2 (2013): 250-253. Print.Schneider, David “Remote wireless power is still a long way off. » IEEE.org. IEEE.April 30, 2009. Web. April 5, 2014 “Wireless car charging costs energy. » ECT.coop. The National Association of Rural Electric Cooperatives. January 7, 2014. Web. April 14, 2014.Zhang,Guoreng. “Wireless charging review: Nokia 920.” Sohu.com. Sohu. Web.April 10. 2014.