Thank you for viewing. This is the Sennheiser HD569, closed-back wired headphones. Used only at home, operation has been confirmed and it works without any problems. ■ Product Overview • Brand: Sennheiser • Model: HD569 • Connection Type: Wired • Type: Closed-back over-ear headphones • Color: Black • Ear pads: Soft cushion type (replaced with compatible ones) ■ Condition of the product • Operation has been confirmed and can be used normally. • Will be packaged and shipped after alcohol disinfection. • There is a feeling of use due to it being a used item. ■ Features • High-quality closed-back model: Natural and balanced sound quality unique to Sennheiser. It reproduces everything from low to high frequencies, and is suitable for long listening sessions. • Comfortable fit: The highly cushioned ear pads firmly enclose the ears, and the sound insulation is also good. Designed to be comfortable even for long periods of use. • Includes a microphone cable, so it supports calls and voice chat. The HD569 is a model that combines high sound quality and comfort. You can use it for listening to music, watching movies, and of course, for telework. Thank you for your consideration.