Bose QuietComfort Noise Cancelling LEFT SIDE ONLY True Wireless Earbud READPLEASE NOTE: Based on the research I have done, each charging case is uniquely paired with the individual buds from the set. Syncing this earbud with another set is NOT guaranteed. For this reason it is being sold in FOR PARTS ONLY condition Condition: For parts All hardware is functional but may not sync with your existing earbud and case. Includes: earbud only. Original packaging, case, charging cord, and accessories not included.