mini portable amplifier speaker 1.Magically amplifies the sound from iphone etc 2.Automatically turns on and off High quality mini portable amplifier speaker for smart phone1 INTRODUCTIONThe Best ... is compatible with iphone 4S, iphone 4,iphoe 3GS, iphone 3GS, iphone 3G, ipod touch 4, and other mobile devices with an external speaker.2. FEATURES.Magically ...