I think if anything pandaros box is open once we say Cordless headphones arent that good compared to Wired headphones.
If you visit headfi forums it will just make it worser trust me...
If your in a postion to listen to some £100-200 headphones (corded) I advise depending on your wallet/finances to NOT listen thru those cans.
I think going down Currys/Argos and just looking at a pair is best.....
As you can tell I sadly went to headfi forums/replaced my £40 wireless headphones with some £100 Senn HD595s and although amazing wish to go back almost Wireless+closed headphones are great life features I miss