Bad Elf strives to create high quality, dependable products consistent with Apple's philosophy of - It just works! Just plug in your Bad Elf GPS and go play. No complicated setup. No batteries to charge. No hassles. The Bad Elf GPS is the best selling Apple approved external GPS accessory designed to directly connect to you iPad, iPod touch and iPhone. The Bad Elf accessory plugs into the dock connector and allows Apps to read your current location.