Full Details on Amazon.com : http://www.amazon.com/gp/product/B0052S3ZBG?tag=tsukuyomi-20<br /><br />Razer Hydra PC Gaming Motion Sensing Controllers Portal 2 Bundle (RZ80-00630200-B3U1)<br /><br />A breathtaking new way to play when you can intuitively reach out and interact with the virtual world in complete three dimensions <br />Bundled exclusively with Portal 2includes Sixense Motion Pack DLC featuring 6 TrueMotion levelsspecifically created for RazerHydra <br />Play PC games in a new way with motion sensing controllers that take you deeper into the game world by letting you interact move in complete 3D <br />Interact with the virtual world in complete three dimensions as you would in real life <br />And degree makes this the best motion sensing for absolute game immersion <br />Extensive PC Games Library Compatibility - Apart from Portal 2 the Razer Hydra is optimized for over 125 popular PC games right out of the box
