Currently, the rhythm of urban life is speed up,and the digital products are replaced frequently,as a result, there are more and more digital garbagewhich may cause different kinds of crisis for our earth.So, here comes Life Extension Device of Cellphonechange a waste cellphone into a zero-power telephonewith the basic function of listeningand answering through conversion technology of signal,as a result,not only a new method of application isfound for “Digital Garbage”,which extends the life of product,but also the purpose of zero-carbon is achieved.Thus we win the benefits of carbon reduction.

Life extension device of cellphone keeps only three functions for cellphone :button, listen and answer.it can change telephone signal intodigital signal which cellphone could receive.and transmit signal through USB cableso that it is suitable for any cellphone.It also use vocal apparatus of original magnettelephone's ring device.