This is Campfire Audio's CASCADE. I purchased it 7 years ago from e☆イヤホン and am the original owner. I only used it a few times a year. The included items are as shown in the photos: the main unit, outer box, headphone case, included cable, instruction manual, carabiner, and four types of dampers (one of which I used regularly and shows significant wear; this one will be attached to the main unit for shipping). As a bonus, I'll include a separately sold SXC8 4.4mm balanced cable. Regarding the condition, there is some haziness on the headband, and overall there is some wear and tear due to its age. I usually used a cover on the headband, so I will ship it with the cover attached. Sound output has been confirmed to be OK. Instant purchase is OK.