Fm audio transmitter the ultimate fm transmitter for ipod small and compact with superior performance and innovative features this fm transmitter displays the fm frequency on the ipods screen it allows simultaneous charging while playing and transmitting music compatible with any ipod 30 pin dock connector which includes ipod 3g ipod 4g ipod 5g with video ipod mini ipod nano and ipod nano 2g this device requires no batteries as it draws its power directly from the ipod so there is