Does documented weight of mouse include cable?

Hi, I am trying to find the weights of various mice and for a couple of the mice that i've searched for, their weights are within the range of 129-135g

I have 2 mice, the microsoft comfort mouse 4500: Microsoft Comfort Mouse 4500: Amazon.ca: Electronics, which has a weight of 132g

I also have the logitech nano vx and from google, i believe its weight is 99g, i'm using 2 AAA batteries, which should weigh 11.5g each, so that should bring the mouse to approximately 122g

however, the comfort mouse feels lighter, could this be because the weight of the microsoft comfort mouse (and perhaps all wired mice, unless otherwise specified as "body only" or "without wire") includes the weight of the wire?

Here are more examples of mouse weight data, neither of which state if the weight of the wire is included
http://www.google.ca/url?sa=t&sourc...NUBLYjbVG1LJOAyrw&sig2=Qq1srMBF7amrpXGdW4orOw with a weight of 125g

and another: http://www.google.ca/url?sa=t&sourc...B8I22xYqJKW3wXyIQ&sig2=uuHyhk0oyKJYSr3-0zTrmQ (136g)

More specifically, i'm trying to find the "without wire" weights of the razer deathadder, razer imperator, roccat kone, logitech g500 (without weights), microsoft intellimouse 3.0/4.0, and the steelseries xai, if anyone can tell me the weight for any one of these, it'd be appreciated!

Thanks!