Patent ID: 8007321

Claim:
An earphone adapter for being fastened to a cable, comprising: a plug part; a socket part connecting with the plug part; and a shell enclosing an inner end of the plug part and an inner end of the socket part with outer ends of the plug part and the socket part exposed from two ends thereof, several portions of an outer surface of the shell protruding outward to form two first fastening blocks spaced from each other, and a second fastening block located between the two first fastening blocks, a bottom of each first fastening block being concaved inward to form a first fastening groove passing through a side thereof adjacent to the second fastening block, a top of the second fastening block being concaved inward to form a second fastening groove passing through two ends thereof, a substantial middle portion of the cable being placed in the second fastening groove with two ends thereof being clipped in the first fastening grooves along two ends of the second fastening groove, respectively.