Accessories for iPhone 4 * FM Transmitter * Frequency is from 88.1 to 107.9MHz * Work with all iPod models,iPhone & iPhone FM Transmitter for iPhone & iPod & iPhone ... lit4. Memorizes up to 3 frequencies5. Draws power from iPhone or iPod,no batteries required6. With car charger,it ... iPhone7. CE,FCC & RoHS approvel Compatible with:Work for all iPhone 3G,iPhone,all iPod models(Incl.iPod nano 3rd & 4th ...