Passive silicone speaker amplifier compatible with all Apple iPhones®, including iPhone® 5. Boosts sound up to 200% (10dB) by acoustic wave guide horn system, for sound twice as loud. No external power necessary. Stands your iPhone in an angled landscape orientation for easy media viewing. Stabilizing foot prevents tipping the unique spherical design. Brilliant full color Fireglaze™ graphics. Amazing soft touch finish, exclusive design. Available colors are white, and black.