Sennheiser MM400X Wireless Headphonesは、2012 年 11 月 8 日に初めてリリースされました。重量 105.00g のエレガントな黒のデザインにより、 Sennheiser MM400X Wireless Headphonesは美しく快適なヘッドホンになります。バッテリー寿命は 10 時間で、長いアクティブな 1 日を通して快適に使用できます。
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