What does 3G mean on a Iphone 4s?

I have a verizon iphone 4s. And on the top left corner it says 3G. I'm totally confuesed on what it means. And i listen to pandora app on my phone so will that raise the bill? AHH i'm so confuesed

It means your 4G isn't working… Contact verizon

3G is data.

Pandora does use data but you pay for a data plan.

Unless you go over your monthly data limit you will not be charged for using Pandora.

It means you are picking up 3G coverage. For instance there's EDGE, 3G, and then 4G. 4G is the fastest. Your pandora app uses internet to work which uses data if you are not connected to Wi-Fi. You probably used up all of your data that you have on your cellphone plan which is why that ran up your bill. You may want to consider having more data added to your plan.