This is the Westone Audio MACH 80, their flagship model. I purchased it new in July 2024. When I listened to it in the store, I thought the sound was to my liking, but when I listened to it at home, it wasn't quite what I preferred, so I haven't used it much since then. It's in very good condition, as you can see from the photos, as it's practically unused. No box. No smoking. No pets. No odors from daily living.