Quick question about headphone connection

I jsut got my 2500 today and i just need to know wut size end goes into the headphone jack before i go to radioshack in a few hours
this the one that fits?
http://www.radioshack.com/product/index ... age=search

sorry for the dumb question, i jsut figured that it would be easier asking it here then to buy 2 different knds and have to return one of them afterwards

Now that's funny:

"Adapts stereo headphones to fit audio devices with mono inputs."


Well, if you have your 2500 already, why do you have to ask? You can use a 1/4" stereo jack to plug into into it. Any headphone should have that, or at least an adapter to it.

To answer your question about the link you posted, that's the right size but the wrong type. With mono, you're removing your stereo listening capabilities; unless, of couse, that is your intent.