Credit goes to Trent86 for original deal, but I noticed that if you buy 2 from the Dick Smith Ebay store, its $4.95 shipping for both, and you can apply the ebay 15% coupon off as well bring it down to just shy of $50.
As pointed out, could easily be a price error, but worth a shot
EDIT: Just got off the phone with DSE online and they can't say if its an error or not. Might be worth a punt but remember, if it seems too good to be true…
I did as well. Bought via DS website, paid using CC directly. Didn't receive headphones as a free gift :(