Griffin iTrip LCD FM Transmitter for iPod with Dock Connector Griffin iTripLCD FM Transmitter for iPod w/Dock Connector General Features: White design FM transmitter for iPod with dock connector Backlit LCD screen Built-in antenna Selectable LX or DX modes of broadcasting High stability crystal oscillator, phase-lock loop control Compatible with iPod 3G, 4G, 5G with video, 4G Photo, 2G Nano, 1G Nano Specifications: Modulation: FM stereo