Sony WF-1000XM3 Platinum Silver Earphone Left Side (L) Only * Operation confirmed * Pairing confirmed Please purchase with confidence as the above has been confirmed. You can also purchase immediately without comments. If you have lost one earbud or want to revive your earphones, please consider this. Battery operation has been confirmed for over 1 hour. Battery life has not been confirmed. Please note that the battery is a consumable item and is not covered by warranty. As this is a used item, there may be small scratches or stains that cannot be removed. Please understand that this is a used item before considering purchasing. --Regarding Pairing Method-- WF-1000XM3 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 (blue) 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. --Quoted from the manufacturer's website-- Features: High-performance noise canceling Achieves high-performance noise canceling with "High-Quality Noise Canceling Processor QN1e" and "Dual Noise Sensor Technology". Significantly reduces noise over a wide range of frequencies, from low frequencies such as airplane engine noise to mid-high frequencies such as human voices. Immerse yourself in high-resolution sound quality even with completely wireless DSEE HX, a high-quality sound technology that upscales CD sources, compressed sources such as MP3, and streaming services such as music and videos to high-resolution sound sources, is the first to be installed in a completely wireless format. Long battery life for peace of mind on long outings, up to 24 hours with noise canceling ON 6 hours with the main unit only, and 3 charges with the included case, for a total of 24 hours of music playback. Furthermore, with noise canceling OFF, you can listen to music for 8 hours with the main unit only, and 3 charges with the included case, for a total of 32 hours. Also, quick charging is supported for peace of mind in case of sudden outings. Search Keywords #WH-1000XM