Q: Ipod nano 7th gen headphone jack not working

My Nano 7th gen head phone jack doesn't seem to be working properly. I put my headphones in and it only plays in one of the ear buds but not the other. i have tried using other headphones and they do the same thing. i tried the headphones in other devices and they work fine so its not them, so it is most definitely the iPod nano. how do i fix this?