Griffin iTrip
The Griffin iTrip is an FM transmitter that is paired with the iPod. It takes the sound from your iPod and broadcasts to any FM radio. This gadget is very handy, especially for the car, in home stereos, boom boxes, wireless headphones and anything else that can play FM. The iTrip does not require batteries because it gets power from the iPod. It is entirely wireless, which adds to its portability.
To use it, you simply pop the iTrip into the iPod and play music- the volume needs to be 50% to 70% on the iPod for best results. Lower than 50%, the iTrip will turn itself off, higher than 70% the sound might become distorted. Next, tune your radio to 87.9, this is what the iTrip is set to by default. After that, you're all set to enjoy music straight from your radio. It has a built-in antenna and a long battery life. Truly, the iTrip Griffin is the best accessory there is for the iPod.