I have a Sennheiser HD600 that is in like new condition. Both the original box and manual are included. The reason I want to sell/trade is because I recently bought a Grado SR325is, which is better suited for the music that I listen to. I am looking for other headphones that are better suited for movies/gaming. Some trades I would consider are for a Fidelio X1, Q701, MA900 (+ cash on your end with any of these), or other headphones that excel with movies/gaming. Feel free to PM me with an offer if you are interested.