I've only used the lanyard headphones. I haven't opened the stock ones that came with my nano, so I can't compare them for sound quality. They definately LOOK like the same headphones, however. I have no complaints about the lanyard's sound quality . They've met my expectations. If I'm not wearing the lanyard, I have some very old Pioneer headphones (bought back in the days of walkmen) that I use because the sound is excellent and they're very comfortable. However, lately, I've just used the lanyard--it's a very convenient and safe way to carry the nano.