beyerdynamic の t1 2nd generationです。 動作確認済み。ハウジングの状態はよく音質も問題ありませんが、以下ダメージがあるのであらかじめご了承ください。 ・ヘッドクッションが加水分解でダメージを受けています ・左側の金属部分がわずかですが曲がっています（装着感には影響はないと感じました） 元箱が付属します。 sennheiser sony audio technica

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