After the unity of the Mobile phone charger  interface,the information Industry started to brew the unity of  Mobile earphone interface standard.

      At present，the commmunication standardization  association of china announced at their website, the commmunication standardization  association of china has started the formulating work of the earphone interface standard.And they hold a related conference on Feb 29. The experts on the conference think that ,Because the using of mobile is becoming more and more widely, but the non-unity of the pin project will take lots of unconvenience to the users. So it is quite necessary to uniform the standard.whereas the situation of the present domestic manufacturer of mobile earphone, Whereas the situation of the demestic mobile earphone manufacturers,some measures should be taken,thinking of the compatability with the present used mobile earphone . 
 “As a matter of fact,it has been the late period of the formulation of the mobile earphone interface standard." . he guili,the director of the china terl lab discosed,this project will be forwarding faster and faster,maybe will come out the first half year.

     March 4th,Dai xiaohui,the director of the information industrial department held a conference "Information Communication Standard Forum",on which the standardization of mobile terminal,electromagnetic radiation,smooth information,lightening proof work should be  done well continually.
     “I have heard about it,but not action yet." A senior of a demestic mobile manufacturer in shenzhen said.The topic about the mobile earphone interface standard is talked on the seminar ,on which was helded by the telecom office of  information industrial department in shenzhen 19th,20th of this month .
     Liu wenquan,the Vice-general magager of Guohong digital saling center of china said.At presetn,the interface of charger,data,and earphone are mostly uniformed of present mobile.If the mobile earphone interface standard is made out,that means all of the mobile interface will be uniformed. 最大的阻力应该还是在诺基亚等国际品牌，因为他们销量比较大，特别是某些低端机，成本控制很严。”刘文权透露，采用统一标准的手机耳机接口，应该不会对国产手机成本造成太大影响。

      据了解，中国联通CDMA定制手机从2007年开始就与各合作厂商执行统一标准，并从今年1月1日起，强制执行手机充电器接口、数据传输接口、耳机接口统一标准化，各个品牌手机的充电器、数据线以及耳机实现通用。

      诺基亚中国相关负责人表示，目前标准还在制定过程中，并没有真正出台，很难评估对公司产品的影响。但国家出台手机耳机的标准，诺基亚肯定会严格遵守国家的规定。去年国家强制执行手机充电器标准，虽然诺基亚、摩托罗拉等国际品牌在标准出台之前没有任何表态，但也在标准执行日之前迅速跟进。

      据了解，目前诺基亚大部分产品的手机耳机接口均采用专用的3.5毫米耳机接口，但也有部分产品采用了充电接口、数据接口和耳机接口统一的三合一接口