| 摘要 |
PROBLEM TO BE SOLVED: To provide an earphone system capable of setting randomly length of each branched code from a branch point to the right and left earphones. SOLUTION: In an earphone system to which codes 2, 2 branched to the right and left earphones 1, 1 are connected, length adjusting mechanisms 5 are attached on each codes 2, 2 branched for each.
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