^{Everyone can imagine that in the future, the phone may no longer need a Charger to charge. If this really happens, then there is nothing more than these two situations. First, the mobile phone battery technology revolutionary change, no longer need to charge, or like a solar battery, can automatically charge. Second, the charging method has changed, no longer use the charger, but like WIFI, the real wireless charging.}

^{Is this possible? it is entirely possible! The University of Washington has developed a mobile phone that does not require special charging. Although this prototype phone looks like a circuit board, in fact it can really call, integrate the complete GSM chip, and 3.5mm headphone jack. It is unique in that it has a built-in solar cell with a grain size of only 3.5 mW, which absorbs ambient light and wireless signals at any time and converts it into the power required by the phone.}

^{The developer used this phone to make a successful Skype call and the call was good. In the future, it is expected to add functions such as electronic ink screens and video streams, making this board look more like a real mobile phone.}

^{You can imagine that in the future, as long as there is Wi-Fi, you can provide power to your mobile phone, so people no longer have to worry about the battery life, no need to carry the charging treasure, the charger, this will It will have a major impact on people's lives.}