Sony WF-1000XM4 Platinum Silver Earphone Right Side (R) Only * Operation confirmed * Pairing confirmed Please purchase with confidence as the above has been confirmed. Immediate purchase without comments is also possible. If you've lost one earbud or want to revive your earphones, please consider this. Battery operation has been confirmed for over 1 hour. Battery life duration has not been confirmed. Please note that the battery is a consumable item and is not covered by warranty. Please be sure to check the product condition in the photos. We will assume that you have agreed to the condition after purchase. Due to being a used item, there may be small scratches or dirt that cannot be removed. Please understand that this is a used item before considering a purchase. --Regarding Pairing Method-- Initialization Method With the headset set in the charging case and the lid open, touch and hold both the L and R touch sensors for about 10 seconds. Release your fingers when the headset lamp (red) starts flashing. The lamp (green) will flash 4 times, and the headset will be initialized and returned to factory settings, deleting all device registration (pairing) information. After that, you can pair and use it. Search Keywords #WH-1000XM