Bose noise-canceling headphones, the QuietComfort 25. Sound output is good. There are no issues with left/right sound positioning. Noise cancellation has been confirmed to be working properly. While it's an older model, it's in relatively good condition, though there are minor scratches and scuffs. It hasn't been used since the ear pads were replaced. All accessories are included. It seems you can make it wireless by purchasing a kit. It's a rare and excellent noise-canceling model that runs on AAA batteries.