Magellan iPhone Toughcase Enjoy your iPhone or iPod touch on all your outdoor adventures without worrying about damage from environmental elements. Keep your device safe while hiking, camping, sailing, cycling or working outdoors. Tough Case is waterproof to IPX-7 standards allowing your device to be submersed in water (up to one meter for thirty minutes) & shock resistant. The unique case design means that you can interact with your device while it remains protected from the elements, including the touch screen, hard buttons, & audio headphone jack access. You will find the home & sleep/wake buttons right where you expect them to be. The integrated dock connector unites your iPhone or iPod touch with the Tough Case for power, audio, & GPS. Most importantly, the touch screen is responsive & 100% functional! The Tough Case comes equipped with a Si R Fstar IIII high sensitivity GPS chip set that enhances the accuracy of any location based & navigation app. Improve the GPS accuracy of your iPhone to 3-5 meters (10-15 feet) or add GPS functionality to your iPod touch. The integrated GPS chip set leverages SBAS systems, such as WAAS, EGNOS, & MSAS to improve accuracy in North America, Europe, & parts of Asia. The Tough Case adds an 1840 m Ah internal battery that automatically charges your iPhone or iPod touch. Based on your normal use of the device, the Tough Case ¡s battery will double the life of your iPhone or iPod touch. Take your iPhone or iPod touch to new levels by transforming it into a rugged handheld GPS receiver.