Tabiea Wireless Optical Mouse White

Some people can't live without their programmable buttons, while others never figure out how to set them. As with ergonomics, programmable buttons can be indispensable time-savers if this is going to be your everyday mouse.

Attributes to consider include the mechanism of input (a laser, which sometimes doesn't work on some reflective surfaces, or a rubber ball), the resolution of the tracker and the speed by which motion input feeds to the computer

Likewise, check to make sure the mouse comes with the appropriate receiver. This usually isn't a problem for mice that use 2.4GHz wireless technology, but many mice use Bluetooth and often don't come with a Bluetooth receiver.