Griffin iTrip Universal FM Transmitter Review


Griffin has a large selection of FM transmitters for iPods and iPhones, but today I want to tell you about their latest iTrip model. It’s the iTrip Universal. In addition to iPods / iPhones, this FM transmitter will also work with any audio device that has a standard sized earphone jack.

FM transmitters allow you to broadcast the audio from a device such as an MP3 player, to an FM radio. Typically people use them in their cars, when they don’t have an auxiliary audio jack. I fall into that category of car owner… My 2006 Mazda 3 lacked that feature until I installed an AuxMod module on the back of my head unit. I use the AuxMod with a SendStation PocketDock so that I can listen to the music on my iPod through my car’s speaker system. This combination sounds great, but for those of you that don’t have any other option than to use an FM transmitter, this review is for you.

Griffin iTrip

Hardware Specifications

Power: Internal rechargeable lithium-ion battery rated at 180 mAh
Modulation: FM Stereo
Available output RF range: U.S.: 88.1 MHz – 107.9 MHz
Radio Frequency Adjustment Increments: U.S.: 0.2 MHz per step
Operating Range: 10-30 feet

Griffin iTrip

Package Contents

iTrip FM transmitter
3.5mm cable
User guide

My experience reviewing this type of product has brought me to the conclusion that FM transmitters either work great, or don’t work worth a hooey. Several factors will combine to determine which experience you will have, including how crowded the FM stations are in your area and how strong their signal is. The location of your car’s radio antenna is another piece of the puzzle. When I used to test FM transmitters in my old 1991 GMC Sonoma pickup truck, almost all of them worked great. Now when I test in my Mazda, very few work well. I’ve found that the ones that plug into a power port / cigarette lighter socket tend to work the best.

Griffin iTrip

The iTrip runs on batteries. But not AAA’s… Instead, it uses a Lithium-ion battery that can be charged via a USB port. Just pull off one end, to reveal the connector.

The iTrip Universal is made of Black plastic and is approximately the size of a lighter.

Griffin iTrip

There’s a small LCD that has a backlight (it only stays on for a couple of seconds though), that shows the current channel, battery status and stereo / mono sound setting. Below the LCD are three buttons. There is a – and + button that allow you to cycle up and down through FM channels. Pressing both buttons at once will toggle between stereo and mono modes. At the bottom is the Presets button. Double clicking this button will toggle power. Pressing and holding for 2 seconds, will save the current channel as a preset. You can have up to 3 presets.

Griffin iTrip

On the bottom of the iTrip is a 3.5mm jack that you plug the included cable.

Griffin iTrip

The other end goes into the earphone jack of the audio device you wish to broadcast from. I tested the iTrip with my iPod classic. To use the iTrip, you first have to find a channel on your FM radio that just has static. Depending on your location, that might be very difficult. I live in a small town, but it’s still hard to find more than 2 or 3 channels that are clear. Once you find a channel, plug the iTrip into your audio device and press play. This will automatically power on the iTrip. Then you can use the – and + buttons to tune to the same station that you have on your FM radio. When the channels match, you should hear the tunes from your audio device coming out of the FM radio speakers.

Using the iTrip is a snap. I find no fault with operating it. But, at least in my area and in my car, I didn’t find the quality of the broadcasted signal to be very good at all. First of all, I had to crank up the volume on both my iPod and car stereo in order to even hear the music. I really don’t like doing this, because I often forget that I’ve done so and when I stop using the FM transmitter and tune to another radio channel, music will blast out of my speakers, scaring the crap out of me ;o) But, if it was just the volume issue, I could deal with it… Unfortunately, for the different channels that I tried, they all had white noise behind the music, making it sound significantly worse than even FM quality. I always use the same channels with the various FM transmitters that I review, so I know that some transmitters are better than others.

I really like Griffin’s iTrip Universal for its small size, ease of use and battery recharging feature. But I find it lacks the ability to transmit music clear enough for my liking. Sorry Griffin, but I’m going to pass on this particular transmitter…


Product Information

Manufacturer:Griffin Technology
  • USB rechargeable
  • Small
  • 3 channel presets
  • Static
  • Have to turn up the volume on player and radio
Posted in: Audio, Video, TV
{ 4 comments… add one }
  • Robert L Grenader September 15, 2008, 9:33 pm

    It’s been my experience that underneath the hood, all these iPod FM transmitters must use the same electronics, just new and “sexy” packaging. In a crowded radio market like Los Angeles, where there is almost no dead band between FM stations, these transmitters are next to useless. However, on those rare occasions when I am in the middle of nowhere, radio speaking, they are just OK.

  • Tom Bailey March 28, 2009, 4:08 pm

    I’ve owned and used this product for close to a year now. Bought it as soon as it came out. That was a mistake. It is cute and is good in theory, but not in practice. Here’s a quick summary after using it many times in many situations:

    * Short shelf life for battery. To charge battery you must connect it to a USB port of computer. Good in theory. But after a charge, if you don’t use it soon afterward, when you go to use it, the battery is dead and you need several hours to charge it up again. Who is going to keep it constantly attached to a USB port?

    * Signal strength is weak. From back seat of minivan or sedan, static is present while music is playing unless you hold the iTrip just right. Have had several other transmitters that have much greater range. In a house, maximum unobstructed range is 15-20 feet.

    * Cord to connect to headphone jack of music player is ridiculously short. Like 4 inches long. Why so short??!!

    * Display is monochrome and very tiny. No backlighting. Battery strength indicator is too small.

    They need to do a version 2 on this thing. The concept is good. I like how you can tune it to any FM frequency to broadcast, and how it turns on by itself when it detects a device, but it falls way short of the basic functionality of a good FM transmitter.

  • kusiki May 11, 2009, 5:33 am

    I agree with Tom Bailey. I was very disappointed after receiving this as a gift and being very excited about it as our last FM transmitter which worked great (belkin) was stolen. I charged it, but didn’t use it straight away and when I went to, it was dead. Then I tried to use it on a road trip in my friend’s car and it wasn’t powerful enough to transmit. We tried two other transmitters and they were both crap, so it’s not just this one. I think I will look for another belkin, it was so simple, two AAA’s and minimal fuss.

  • bz August 11, 2009, 8:44 pm

    All i have to say is buy accurian instead.

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