This is the portable headphone "DTX 501 p" from Beyerdynamic, a long-established German brand. 【Product Features】 Portable Design: Foldable and compactly fits into a dedicated semi-hard case. High Sound Quality: Features clear and balanced sound despite being a closed-back design. Perfect for listening on the go. Bonus: Includes a Donner audio splitter. 【Product Contents】 Headphone本体 (beyerdynamic DTX 501 p) Genuine semi-hard case Donner audio accessory 【Condition】 Each part has been tested and confirmed to be working. Overall, there are no noticeable scratches, and it's in good condition, including the case, but please understand that it is a used item. 【Shipping】 Will be carefully packaged and shipped via anonymous Mercari delivery. Immediate purchase is welcome. Thank you. #beyerdynamic #ベイヤーダイナミック #ヘッドホン #オーディオ #ポータブルヘッドホン #Donner