These are Bose SoundSport Free wireless headphones that I purchased in 2020 for personal use. I used them for commuting until around 2022, but I'm selling them because I bought new ones. There is no functional degradation at all, but the rubber on the volume button on the right side is torn and missing. However, the volume can basically be controlled from the mobile device, so there is no problem with the connection or sound quality. These are used items, so please refrain from purchasing if you are hesitant. Thank you.