you plug it into your usb slot and it lets you access internet anywhere? how much do they cost? and if you have one how much do you pay a month for it?

i realize that verizon has a website just came from smart ass. the reason i ask if you must know is because the information they had on their devices is vague and i wasn't sure that what i was looking at was indeed the device i was looking for because "broadband" doesn't mean "internet" to me although i had a mild inclination that i was in the right direction i was still unsure.