Can confirm OW price beat this deal. $329 at Kogan/Dick Smith and with price beat (-16.45) it comes down to $312.55
Best Noise cancelling on the market according to Sony. Fair warning: Reviews say some people have trouble with the ear tips and that they can hurt. I haven’t found this to be the case but you can always return if you have issues.
You got lucky, considering Dick Smith/Kogan stock are Direct Import.
If you don't mind Refurb/Seconds - $239.20 ($233.22 eBay Plus) Delivered @ Sony eBay with code RFB20/RFB22