Features:

• Convenient one-piece transmitter and charger module uses any frequency from 87.7 to 107.9
• Backlit screen shows which frequency RoadTrip is currently broadcasting
• Transmitter can be removed and used with a Mac or PC computer
• Plugs into any auto power outlet or lighter adapter
• Compatibility: iPod nano (1G only), iPod mini, 3G iPod, 4G iPod with click wheel, iPod Color, iPod Video

Editor Reviews:

Product Description:
Imagine having a high powered FM Transmitter, an iPod auto charger AND a convenient iPod cradle - all in one simple elegant device. Meet RoadTrip, the only iPod and iPod mini car accessory you'll ever need.

Amazon.com Product Description:
The Griffin Technology 4031-RDGC RoadTrip FM Transmitter and Auto Charger and Cradle for iPod combines a high-powered FM transmitter, an iPod auto charger, and a convenient iPod cradle in one package. The RoadTrip plugs into any power outlet or lighter adapter and provides an adjustable cradle for any docking iPod. Once your iPod is charged and docked, the transmitter broadcasts your iPod's music to any FM frequency from 88.1 to 107.9. The backlit screen shows which frequency is currently broadcasting, while buttons located directly on the front of the unit allow for easy adjustments.

The removable transmitter can also broadcast music from Macs or PCs through a combination USB power and audio connector cable that attaches any USB equipped computer to the module. Then, just play your iTunes music, movie audio, or presentation sound on any FM stereo that's close by.

What's in the Box
RoadTrip body, FM transmitter module, power plug, sleeve adapter, extension, USB/audio cable, Protection pad, iPod holder/belt clip, and clip holder for iPod mini.

iPod Compatibility
iPod nano 1G, iPod mini, iPod 3G, iPod 4G (Clickwheel), iPod Color, iPod 5G/5.5G Video

Note that the RoadTrip is compatible with 2G iPod nano models with adapter available from Griffin

Rating : - After using three different FM transmitters, this is the best
I bought this years ago and it was a great product. I hardly ever had any radio interference, even on stations that had existing signals - as soon as I turned this on, the radio went totally silent and I could enjoy the music from my Ipod. Then one day I was being a bit of a clutz and leaned over my seat and cracked the adapter plug, which cut all the wiring inside it. Stupidly, I replaced it with a cheap Belkin transmitter from Wal-Mart. Bad move. I got interference everywhere, on any and every frequency. No matter where it was in my car.

Then I bought a Satechi 6-in-1 FM Transmitter. It worked better than the cheap Belkin one, but not quite as good as this Griffin RoadTrip one; furthermore, my 30 gig video Ipod weighed too much for it and it kept flopping over if I hit some bumps on the road. Satechi's trasmitters are not held by a firm plastic cradle like this one does, and even though you could screw the joint on the Satechi one really tight, it will eventually loosen up and fold over on you again. After multiple times of the Satechi brand flopping over on me, it broke completely.

Hindsight 20/20, I should have replaced my first Griffin RoadTrip with another one.