When you've just dropped a wad of your hard-earned cash on a new MP3 player, purchasing an accessory to help make the most of it may seem counterintuitive, but that's exactly what you should do: upgrade those headphones. You needn't spend a lot to get a pair that's undeniably better than the stock set that came with your device. Case in point: the Sony MDR-EX55LP Stereo Headphones. These earphones will set you back about $30 only, and they offer a noticeable improvement in sound quality and comfort.