Pong Classic Case for iPhone 4/4S - Red Reduces user's exposure to radiation (SAR) by up to 72% below FCC limit for an iPhone 4/4S Provides protection from 4 foot drops and is tested to U.S. military drop standards Just snap it on your smartphone, and the Pong antenna will pair automatically with the antenna inside your iPhone 4/4S Tested in the same independent labs that verify conformance of wireless devices to requirements of the US (FCC), European (CE), Canadian (CA) and Australian (ACA) governments. Patented RF technology protects you while maintaining your phone's signal, while still providing open access to all ports and functions. 60-day money back guarantee