Product Name: Sennheiser HD 450SE Wireless Headphones Product Condition: - Bluetooth connection and operation confirmed. - Noise-canceling function works without any issues. - Overall in clean condition. - Ear pads show no significant wear or tears. - Used in a smoke-free and pet-free environment. [Product Description] This is the popular Sennheiser model "HD 450BT". In addition to high-quality Bluetooth wireless playback, it is equipped with an active noise-canceling function, making it ideal for listening to music, watching movies, and teleworking. Shipping: Will be carefully packaged and shipped via Rakuraku Mercari Delivery (anonymous shipping). Instant purchase is welcome! Although the box is not included, the included case will be provided.