i-Trip for an apple i-pod works from the following spec:
Compatible with all iPod models, including 4th generation models
Digitally select from more than 100 stations; choose any FM station on your dial between 87.7 and 107.9
Digital tuning eliminates signal drifting
10' to 30' operating range (depending on quality of FM radio receiver); built-in antenna
Shuts off automatically after 60 seconds of silence
Battery-free operation powers directly from your iPod for minimal energy consumption
International frequencies software selectable
http://www.bestbuy.com/site/olspage....=1099385767261
It would be wrong for me to say where this has been used, but suffice to say it does work well
