... base for charging or for connecting iPhone to your home audio system.2)Power model: USB2.03)Frequency: 20Hz-20KHz4)Makes ... charging and synching simple5)Audio out6)Charge & Remote your iPhone & iPod7)Built in FM transmitter ... .1,88.3,88.5,106.7,106.9,107.1MHz)8)Work with iPhone,iPhone 3G & iPod,IPHONE 3G S ...