See companies such as Samsung, Apple, HTC, LG, etc. spend billions of dollars each year in research and development projects. They want to develop new technology and want to develop. And it costs billions of money . You may have seen on the Internet that only $ 20,000 was spent to create an iPhone or Tk 15,000 was spent to make the Samsung S6.
Now this number is thrown through radio waves through small antenna phones (in some countries the antenna is called arial-aerial). Now, at the speed of radio waves, if the nearby cell phone tower (tower) can not reach, the radio wave enters the air
Friends, the number of accidents caused by mobile phones so far has only been due to the use of third-party substandard products. This does not mean you can not use a different company's charger or battery on the phone. But if you reverse on a company's battery or on its phone, then there may be an accident.