Purchased on Amazon in November 2025, but I bought a different model, so it has been stored unopened. It is new, unused, and unopened. Please refrain from purchasing if you are concerned about initial scratches due to being stored by a private individual. Regarding the warranty, I purchased it on Amazon, and the purchase history serves as the warranty, so I am very sorry, but I cannot provide it due to privacy concerns. Thank you for your understanding and acceptance. HD 560S Brand: SENNHEISER Structure: Open-back Wearing style: Both ears, integrated left and right Earphone/Headphone type: Headband type Color: Black系 (Black-based) Low-frequency response (Hz): 6.0 Hz High-frequency response (kHz): 38.0 kHz Wireless/Wired connection: Wired connection Driving method: Dynamic type Plug shape: Standard plug/Mini plug Sound pressure sensitivity (db): 110.0 db Driver size (mm): 38.0 mm Cord length (m): 3.0 m Weight (g): 240.0 g - Brand: Sennheiser - Model name: HD 560S - Features: Reference-grade headphones - Usage: Analytical listening sessions - Country of manufacture: Germany #ゼンハイザー (Sennheiser)