This is the successor to the Technics RP-DJ1200. I purchased it as a spare, but I haven't had a chance to use it, so I'm putting it up for sale. Production has already ended, so how about it for those looking for one? Sound quality for DJ monitoring High-quality sound & high-input 40mm driver 270° rotating mechanism with lock for single-ear monitoring Robustness to withstand harsh use Detachable cord and connector with locking mechanism The sound quality required for headphones used in DJ play differs from that of general headphones. The "EAH-DJ1200" achieves an optimal balance of low and high frequencies that is easy to listen to for long periods, along with sound quality that makes it easy to grasp the "tempo (BPM)" and "pitch" of the music, which are necessary for DJ play.