Replying to Icon sound help.

So this morning on the bus ride to school i was listening to my music and both speakers worked well. about 1 hour later in class i try to listen to some music and i notice that my right speaker isnt working, so i tryed it on the computer and it didnt work as well. so i played around with the plug and in some spots the right speaker was working. is there any way i can fix this because i dont want to buy new headphones and i really like my icons. they are the freeskier icons so i dont know if that is under warrenty as well. +k for help!