hi, I just received a new headset for my psp : Audio-Technica ATH-ES7. They really rock ! Great looks and great sound. They go very well with the PSP as they offer a very decent isolation and good sound pressure. Even in the subway I don't have to push psp to the max (listening to rock, classical or jazz) to get a decent sound level and max sound will hurt my ears. So fellow PSP users, ATH-ES7 will probably make you happy Ps: I used to have a pair of ATH-SJ5. Although a lot cheaper they do not match ES7 for sound isolation, power and quality. I paid 100€ to get them from Japan (50% cheaper that getting them in France !!!) but I'm happy. PS2: Sound quality is really excellent, very detailed, rich natural sound.