It's not pictured in the article, so here's a direct link to the RAW Prism:
http://steelseries.com/products/audio/steelseries-siberia-raw-prism
Now, I'm a fan of the Siberia v2 Frost Blues, but after seeing the RAW Prism images, I'm beginning to think the minimalist illumination design looks a lot better than any of the other, more expensive offerings.
And it's probably because the thin-orange/blue-ring-on-white motif (the first two images in the product site) reminds me of Portal. This RAW Prism is the headset I imagine Chell would wear.