Sony WF-1000XM4 Platinum Silver Earphone Left Side (L) Only Brand new, unused. Version 2.0.1. Pairing is possible with version 2.0.1 and later. Also, there are rare cases where pairing may not work due to differences in the system firmware version of the single earbud you have. If you are concerned, please feel free to comment beforehand, and I will check if it is a pairing-compatible version. Please note that we do not accept returns due to pairing issues caused by version differences after the product arrives. --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's lamp (red) starts flashing. The lamp (green) will flash 4 times, and the headset will be initialized, returning to factory settings, and all device registration (pairing) information will be deleted. After that, you can pair and use it. Search Keywords #WH-1000XM #Apple #Mac #iPhone #iPad #AirPods #EarPods #airpods #earpods #apple #earphones #wireless earphones #sony #sony #nintendo #nintendo #game #wii #switch #imac #macbook #logicool #panasonic #panasonic #samsung #samsung #lg #keyboard #mouse #earphones #speaker #mobile phone #mobile phone #phone #smartphone #tablet #computer #laptop