[CQ-Contest] RF and wireless mice?

[Barry]

Hi all,
As our cat has chewed through my kids' computer's mouse cord for the 
third time, I'm contemplating getting a wireless mouse.  Looking at 
the specs of the Microsoft wireless mouse, it runs on 27 MHz.  

I wonder if anyone has used one of these in the vicinity of the ham 
shack, and if so, any RF problems in either direction?

Tnx,
Barry W2UP--
Barry Kutner, W2UP              Internet: w2up at mindspring.com
Newtown, PA                     Frankford Radio Club