FM transmitter for iPhone 4G 1)360 degree rotation offers a trendy design. 2)High quality silicon gel on the back & side. FM transmitter for iPhone 4GNumber:JYC01190721.Connect your iPhone 4 with the iPod plug then you can enjoy music while in charging.2.Use any FM station from 88.1-107.9MHz to bring you the perfect high quality music from your iPhone 4.3.Standard USB-A (5V,1A) output socket ...