The Bad Elf GPS instantly adds GPS and GLONASS location support to your iPhone, iPod, or iPad. You might ask….”My iPhone, iPod, iPad already have GPS, why would I have any use for the Bad Elf?” These gadgets do come equipped with a GPS but they rely heavily on cell towers. The iPhone, iPod, and iPad have what is called an “A-GPS” which is an assisted GPS. For around town and anywhere where you get cell coverage these will be sufficient but out in the wilderness, in the air, or at sea it could take up to 20 minutes to find your location via the “A-GPS”. That is where the Bad Elf comes in. You can pick up satellite lock without cell tower assistance in a matter of seconds. It plugs right into your lighting connector and pulls its power from your device. On a fully charged iPod touch you will be looking at 4 hours or more of power for the Bad Elf and on an iPad you’re looking at 10 plus hours. There are some excellent apps available that will work offline in conjunction with the Bad Elf.