Hi. <p> I'm new on this site. <p> I've just registered myself just to know if someone here could help me... <p> I have one of the SONY NW-S706F MP3 player. <p> Very impressive with the sound quality, especially with the noice cancelling feature.<br> But just when I noticed the plug of the headphone, I realize that I might have some troubles in the future, and, in deed, I have. <p> The headphone that the player provides (MDR-NC022), inexplicably started to sound lower on the left side...<br> This is the first time that a SONY device that I own brings to me a problem... <p> I just don't know why this has happened.<br> I have not make a bad using of the player, or the headphone in itself... <p> Just one day this happened, and well, as I know, this headphone cannot be bought as an external accessory. <p> Some one here knows but could be the problem???????? <p> I have checked the player with other headphones and they play well... So the headphone is the problem on its own... <p> <p> Well, I hope to find some help here. <p> <p> Cheers. Martin Buenos Aires. Argentina