The Logic3 MIP167G is an FM Transmitter compatible with ipod 2Gen nano players. It transmits on any FM frequency between 87.5 MHz to 108.0 MHz. Other features include: FM frequency display on iPod’s screen, 10 Frequency Memory Storage, 30 Pin Pass Through Port for charging, no batteries required. FM transmitter for 2nd gen iPod nano Operating frequency - 87.5 MHz - 108.0 MHz 10-Frequency Memory Storage 30-Pin connection No batteries required