Cheapest I've seen these wireless headphones, with the exception of a Amazon one day lightning deal earlier this year (which didn't include shipping to Australia).
Generally in Aus these retail around the $300 mark, but can be had for online around $220+ from various places.
Supposed to be pretty decent sound quality (for wireless headphones) and boast 5.1/7.1 virtual surround sound, and compatibility with both Xbox and PS3. You can also supposedly use them on your PC after installing some software. I read somewhere that you can use the bluetooth functions for your phone as well, but don't quote me on that.
Note: ausgamez.com is a UK based site, and is not an Australian company, so postage time may take awhile.
the lightning was with shipping to Aus, but this price is only $20 more than that lightning deal. Good find…
thinking about buying the 3rd PX5… my 1st PX5 broke, 2nd was for my bro
edit: any idea where i can get just the Headphones of the PX5 for best price?