【Excellent Condition】Sony WF-1000XM4 Right Earbud Only Wireless Earphones Black Functionality has been confirmed. The product has been cleaned and disinfected. Please refer to the photos for details. This listing is for the right earbud only. The left earbud, charging case, and ear tips are not included. Please understand that the item for sale is a used product before purchasing. We cannot provide support for returns, shipping, sound output, or battery-related issues. Due to the risk of product substitution, returns are not accepted under any circumstances.