Amazon.com: Customer Reviews: Datexx 215WTLG Worldtime Calculator with Leather MousepadGel...
"That's handy enough, but it also has a pop-out calculator, which means when I need it, it's right there, and then it's gone till I need it again! Neat work Datexx!! Don Kobes I really like the Executive Mouse Pad because it has a clock/calculator..."
"I like the arm rest, and that is why I kept it..."
"Smooth mouse scrolling on surface for everyday pc use or gaming..."