First off id like to say i am not an audiophile and this is the second time on this forum that ive wrote a review.
 
Now with that said these headphones are really great and well worth the money i paid for em.
The sound i bright and the highs and mids are clear and crisp and the bass is not at all overpowering which i personally love about them. They are quite an improvement from the HD 202s that i have.
 
When i first got these i put them on and at first it didnt seem all that different from my 202s till i went and put my 202s on and realized that i was very wrong. The highs and mids seemed to muddled due to the bass. So i put the 518s on and i could just hear how different they were then. They are amazing. Again though im not an audiophile.
 
Id recommend these to anyone looking for good entry level headphones.
 
Sorry if this review isnt all that helpful to anyone.

I bought my Sennheiser 202's not even a week ago and already loving them! They have wonderful treble, mid, and bass and work with my music. The problem i have which seems to be recurring is the long cord which can be a hassle when im skateboarding. I was very shocked at how cheap they were too. Before i bought these my friend told me to get what he had which were skullcandy mesh's but i stumbled onto this website and did some research on the choices my local store had and i saw the reviews for these and thought id give it a shot.
I highly recommend these for anyone who want a good pair of headphones and are on a budget.
 
Im new here too so sorry if my review wasnt that great.