Deathadder Question.

Why is it that under buy.com. Specificallyhttp://www.buy.com/prod/razer-deathadder-gaming-mouse-optical-usb-razer-deathadder-gaming/q/loc/101/204143283.htmlUnder movement detection it says optical. While if you search "deathadder" and click on the white one it says "infared". Is this a typo? If not, can someone explain to me the differences? And one more question.

Does the Sphex go well with the Deathadder?

I have the Deathadder, though I havn't used it yet,reading from the box it does say "3G Infrared Sensor" on the box.

so theres not a optical version that buy.com may be carrying?RedxSniper

Ok. So i understand that. I just want to make sure, i love being cautious, for some reason... Anyways. So this is the same deathadder that everyone buys?

Ok. So i understand that. I just want to make sure, i love being cautious, for some reason... Anyways. So this is the same deathadder that everyone buys?

RedxSniper