Why hang on the phone's 3.5 mm headphone jack?

Now the phone toward the direction of the development of light, only to see sixty-seven mm thickness of the phone is no longer a rare find, because there are a few really "abnormal" mobile phone manufacturers have done five or six millimeters, such as Jin, OPPO , vivo, etc. 

　　I believe many people have such doubts: Why such a thin phone today, the phone still insist 3.5mm headphone jack specifications, rather than selecting 2.5mm or live on their own, choose other options? 


　　Live on their own: not difficult to please

　　at least seven or eight years ago, cell phone headset hole was not as all-3.5mm jack today, some mobile phone manufacturers choose his own, using their own criteria. Some manufacturers have been used over the interface specifications of 2.5mm and 3.5mm outside, but imagine the user to buy a non-mainstream mobile phone headset solution interface, which means only use proprietary headphones, even if the user already has a lot of pieces at home 3.5mm headphones, but once bought such a phone, it means that the user must place these headphones while using the phone comes with a 3.5mm headphones. 

　　After a time-tested, for mobile phones, other mobile phone interface, mostly a thankless choice, many people still prefer the mainstream 3.5mm interface. 

　　2.5mm: further, but more step

　　to bring 2.5mm, Nokia's first thought is, there were several Nokia phone using this standard, such as 5610,6300 and so on. Have to admit, compared to Samsung's flat interface, Nokia uses 2.5mm or so wise, because the use of mobile phones is significantly larger than 2.5mm program flat interface headphone jack phone much, even Sennheiser's also a special 2.5mm headphones. 

　　But compared to flat interface solutions, 2.5mm advantage also nothing more, and more commonly, a small series do not like hate flat 2.5mm interface solutions like satire program, but they would never say a good word for it - really nothing to say. 

　　3.5mm: Embrace Datong

　　Complete understanding of the above two cases, it is not difficult to understand why we are now phones using 3.5mm standard: the one hand, this headset something more subjective, many users generally have their own favorite headphones, one can not let users headsets for mobile phones on the exchange, so many mobile phone manufacturers simply not supplied headphones, of course, this is because of cost considerations. 

　　Other putting equipment on the other hand, are all standard 3.5mm audio, 3.5mm interface for the phone is not in terms of the user to buy a headset is small, but not allow users to change the sound of it, besides the sound is standard 3.5mm Users did not have to change it. 

　　So after experiencing setbacks and failures, more and more companies to give up other standards, instead of using a standard 3.5mm, and ultimately today's cell phone headset hole Datong situation. 

　　After reading these, I believe we is not hard to understand why the phone's 3.5mm headphone jack are uniform standards, which will undoubtedly make our musical life more convenient, it is also more seamless handover.