These are Sony WF-1000XM4 earbuds. They are being sold as junk items because they sometimes disconnect with a "hissing" sound. Originally black, the left earbud was faulty, so it has been replaced with one of a different color. Both earbuds have had their batteries replaced with new ones. I used them with final ear tips, so I will include them for shipping!!! (I will also include the original ear tips that were on the right earbud) The version is 1.4.2. Please purchase only if you understand that these are junk items.