Centrios Wireless Optical MouseI just picked up one of these over the weekend from The Source. It was on sale for $20, not a bad deal for a wireless optical mouse. My thoughts, it's nice and small and the usb stick and mouse connect with one another with no problems at all. The mouse is working perfect on the three tables we are using our laptop on so it's nice and smooth with no problems at all. We are not using a mouse pad. If you look at the front that black shiny part is where the USB stick goes when not using it so you have no fear of losing it. It just pops out when you push the silver button on top. The only draw is that it takes two AAA batteries so I am not sure how long they will last, we have rechargeables so it's not an issue. For $20, you can beat it.