Prong 1040101 PocketPlug Protective Case with Built-in A/C Charger for iPhone 4/4S &ndash; Slate IPhone case with an integrated wall charger Flat folding plugs for maximum portability - the plugs are easily deployed and retracted with the flick of a finger Micro USB port - a micro USB pass-through lets you charge your iPhone with a micro USB cord Enhanced audio - the pocket plug is designed to enhance the quality of the iPhone speaker and microphone Quick charging technology - the pocket plug was engineered with the most advanced charging technology on the market to ensure a super fast charge