I absolutely know know nothing about earphones other then the cheap pair I am using right now plugged into my laptop, which seem fine except they will not fit under my helmet. I recently purchased a gps and am really excited about listening to something other then sound of brain rattling while on long rides. In doing some searches on the net I've seen prices ranging $500 and up. Also down as low as $49 so what are you guys using? Is it possible to find a decent pair without putting my marriage in jeopardy?