Griffin Technology has created the RocketFM - FM Transmitter for Computers. The RocketFM consists of a hardware transmitter and a software control panel. The control panel provides an elegant, easy-to-use interface for tuning. The RocketFM uses any available FM frequency to transmit audio through your home, car or office stereo system.
The RocketFM is small and lightweight, and requires no additional power source, which allows for convenient use. You can use iTunes, video soundtracks and even streaming Internet radio with this device. You can use the RocketFM to broadcast sound for a presentation, or you can use it on your portable radio. In addition, any audio generated by any application on your computer can be broadcast to a nearby radio using RocketFM.