SONY WF-1000XM5 This listing is for the right earbud only. Purchased in 2024. Version is 5.0.2. (Please note that pairing will not be possible if the versions do not match) It can be updated to the latest version 6.1.0, so please let me know if you would like me to do so. Excellent condition. If you purchase the set of left and right earbuds, I can offer a discount. Please inquire. Returns are not accepted to prevent product substitution. Please understand that this item is stored at home. Will be shipped in bubble wrap.