Functionality confirmed. Sound can be heard from both the left and right sides without any issues. Play/pause and volume adjustment buttons work without problems. There are some scratches and scuff marks in places. The sponge is not deteriorated. *Please note that the box, instruction manual, and charging cable are not included. m(_ _)m (This is a Type-C charging type.) Feel free to ask any questions in the comments! bose Masaki Suda Aimyon Headphones