¥ 4,400 (税込)
https://onkyodirect.jp/shop/pages/TB_EARPHONE.aspx
https://onkyodirect.jp/shop/g/gCPEP01AHB/
https://onkyodirect.jp/shop/g/gCPEP01ADATE/
https://onkyodirect.jp/shop/pages/SIDEM_EARPHONE.aspx
https://onkyodirect.jp/shop/g/gCPMPOW01SH/