Sony WF-LS900N BC Wireless Noise Canceling Stereo Headset LinkBuds S Black True Wireless Earphones WFLS900N BC *Please check the manufacturer's website for product details and compatible models. Used for about 2.5 years after purchase. ⚠︎ The right earphone's battery drains quickly. It can be charged, but it's difficult to use due to the difference in operating time between the left and right earphones, so I'm selling it. This is a junk item, so returns and refunds are not possible. The left earphone and the main unit can be used without any problems. The set includes the box, charging cord (used), and a set of replacement ear tips (unused). Sony Wireless Noise Canceling Stereo Headset LinkBuds S Black True Wireless Earphones Lightweight and compact Noise canceling Ambient sound mode Water resistant IPX4 Type: Left and right independent Connection type: Wireless Features: Bluetooth, Noise canceling