Sony WF-1000XM3 Black Earphone Left Side (L) Only *This item is being sold as junk because it does not power on.* Due to being a used item, there may be small scratches and unremovable dirt. Please consider this item with the understanding that it is a junk item for parts. --Regarding Pairing Method-- WF-1000XM3 Initialization Method With the headset in the charging case and the lid open, touch and hold both the L and R side touch sensors for about 10 seconds. Release your fingers when the headset's 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 the "High-Quality Noise Canceling Processor QN1e" and "Dual Noise Sensor Technology." Significantly reduces noise across a wide range of frequencies, from low frequencies like airplane engine noise to mid-high frequencies like human voices. Immerse yourself in high-resolution sound quality even with completely wireless The first completely wireless device to feature DSEE HX, a high-quality sound technology that upscales CD sources, compressed sources like MP3s, and streaming services for music and videos to high-resolution sound. Long battery life for peace of mind on long outings, up to 24 hours with noise canceling ON 6 hours with the main unit alone, and a total of 24 hours of music playback with 3 charges from the included case. Furthermore, with noise canceling OFF, you can listen to music for 8 hours with the main unit alone and a total of 32 hours with 3 charges from the included case. Also supports quick charging for peace of mind during sudden outings. Search Keywords #WH-1000XM