Applicable headphones: IER-Z1R/IER-M9/IER-M7/Just Ear Series/XBA-N3/XBA-N1. Applicable models: TA-ZH1ES, DMP-Z1, NW-WM1 series, NW-ZX707/ZX507/ZX300, PHA-2A. Balanced standard plug. - 4.4 mm balanced standard plug.
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