Audacious SIM cards come in three sizes: Standard (the biggest), Micro and Nano (the smallest). All you need to do is snap out the correct size for your phone and slip it in. If you’re not sure which size you need, your phone’s user guide will let you know.
It’s a good idea to keep the card your Audacious SIM comes in. It has your SIM PIN and your PUK code. Your SIM PIN allows you to stop your phone from calls and data being used if you phone is lost or stolen. Your PUK (Personal Unblocking Key) number allows you to unblock your SIM if you have entered the PIN wrong three times.