How do i know if my router is wireless?

I have had the same router for my desktop for a long time. I am coming very close to purchasing a new laptop. My problem is that i have no way of telling if my 2wire router from (formerly) SBC has a wireless network to it. So is there some way that i can find out if i have a wireless router? I know nobody that has a laptop that could come over and test it. Help please?