2018年4月过保,箱说配件齐全,带收据,之前换新过,左右单元的编码不一致,长线氧化发黄成色一般,短线成色不错,带一个银线升级线,佩戴舒服,线很软,高频比原线通透,没那么闷,送一对sf套,一共3根线
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