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In-Car MP3 Player Wireless FM Radio Transmitter for USB Flash Drive SD Card with 12V Lighter Plug

3.0 out of 5 stars 4 customer reviews

Currently unavailable.
We don't know when or if this item will be back in stock.
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System Requirements

  • Media: Electronics
  • Item Quantity: 1

Product Details

  • Product Dimensions: 9 x 3.8 x 2.2 cm ; 9 g
  • Shipping Weight: 9 g
  • Item model number: MP3FM4
  • ASIN: B0009GZH5S
  • Date first available at Nov. 18 2009
  • Average Customer Review: 3.0 out of 5 stars 4 customer reviews
  • Amazon Bestsellers Rank: #360,067 in Electronics (See Top 100 in Electronics)
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Product Description

This MP3 player wireless FM transmitter allows you to listen to the MP3 music saved on your USB flash drive or SD card in your car, truck, boat or RV. Now you can enjoy your MP3 music collection without having to spend money to upgrade your car stereo. It

Customer Questions & Answers

Customer Reviews

3.0 out of 5 stars
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Top Customer Reviews

Highly disappointed by this item. Everytime you get your car started you have to re-tune in your apparel with the radio, so you have to spend time searching for the right frequency in your mp3 player!! And even worse... the apparel always start from track one!! So you never really get to listen to all your songs! I wrote to the company signalling the problems I encountered and they actually kindly sent me a second one as a replacement... I was pleased with their service.. until I put the mp3 player in my car lighter and it immediately fell apart! The front cover flew away and now I have no buttons, but only wires and green plastic! So I can't use it at all! Definitely not a very resistent product as well as not functioning properly...
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WOW! everyone should have this amazing device in their car... even if u don't have a car yet :)

No CD to burn or scrach... no cd player that will stop working... don't need to change your original Cd player in your car for an mP3 CD player...just get this fm transmitters that transmit any mp3 files from your flash memory to your fm waves in your radio... as if you are the dJ in your own radio station that broadcast from your fm transmitter to your radio... amazing idea and a very beautiful and portable device.

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Works pretty good. Just hold the play button and you get random function. Connection isn't very good, have to push it in quite hard,( witch would prob be a pain on bumpy roads ) but plays with usb flash no problem. Didn't recognized my HCSD card. Buddy plugged his iphone into my truck and said his cord alone cost 100.00 so well worth the money. Just too bad the lighter connector is so cheap, doesn't want to stay in the socket.
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By KC on Aug. 27 2014
Verified Purchase
Very disappointed. Frequency changed constantly from the moment I plugged it in.
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Most Helpful Customer Reviews on (beta) HASH(0xa1d97114) out of 5 stars 13 reviews
12 of 12 people found the following review helpful
HASH(0xa1d92b10) out of 5 stars Pretty good for the money March 13 2009
By Virginia guy - Published on
This product is pretty good for the money ($29.99). My only complaints are that it seems a little flimsily made, and that you get a split second of static between each mp3. But it does what it's supposed to do. As a clarification of an earlier post by another user, I note that the device does remember which mp3 file you were on the last time you started your car; it just doesn't remember where you were in that file, so it starts the file over again.
7 of 7 people found the following review helpful
HASH(0xa1d92eac) out of 5 stars Good for what it is... June 22 2008
By BigDaddyDK - Published on
This is a basic product to play MP3 files from a flash drive over your car stereo. If you want the finest quality money can buy, this isn't for you. If you just want to hear your own tunes over your radio while driving this product works. It runs a little warm sometimes but it has never overheated or failed to work for me.

Lacks memory to remember where you left off when you turned off your car, but in a vehicle with a 12 volt jack that's always hot it's no major issue. I use a 1GB Sandisk Cruzer with it and it's good for me.
2 of 2 people found the following review helpful
HASH(0xa5f17a68) out of 5 stars You get what you pay for July 8 2010
By Julia M. Gardner - Published on
Verified Purchase
I actually purchased 3 of these items. One for me and two others for a friend. Let me start off by saying I didn't pay a whole lot for it ($12.99 ea.) so of course you get what you pay for. The quality of the music came through with alot of static. I tried this in 4 different cars with 4 different MP3 players. Two of the cars I wasn't even able to get the music to play through any station. It's a cheap product and I plan on investing alittle more money for one that works. I would not recommend this product.
HASH(0xa2f871ec) out of 5 stars Great for the price, some tweaking needed to perfect, no bugs Dec 31 2011
By M. Bonnett - Published on
Thought I would add a review for this thing. Didn't buy it through Amazon but through a local store which had it on the shelf for $10. Figured it wasn't much of a loss if it croaked on me. Caveat to the review: I have not tried the USB or SD inputs yet. I have all my music on my Android phone with a good media player and scrobbling support so that just gets fed to the Aux input on the transmitter. With that said, the whole review and the tips below are focused on the Line input of the device and do not take into account anything to do with the SD or USB ports.

After a few days of playing with it and tweaking out some of the quirks, I find this great as a generic FM transmitter with the bonus of a remote control, digital frequency selection all through the band, and MP3 playback internally. To the quirks though:

1) I found initially that charing my phone and feeding through the transmitter at the same time introudced a lot of noise in the audio. Not ground hum but specifically a digital-like noise. I get this with my notebook through headphones when it is charging but goes away when running purely on battery. Might be ways around this and might not turn up for everyone. I find simply having my phone charged ahead of time and running on battery produces perfectly clean audio. My trips are only around 30 minutes max so not something I worry about.

2) Overmodulation/distortion: Very easy for audio distortion on this device. I guess it doesn't have any built in audio limiting hardware which can either be a good or a bad thing. Good being it is a more direct audio path with no modification. Bad being, as noted, it is easy to distort. And if all of your music is at different volumes, you are going to be constantly tweaking the output volume of your given device at every song change. And with the maximum level this transmitter will accept before distorting on you, you are going to want to keep the volume maxed as much as possible as I found the resulting volume through the radio was MUCH less than regular stations. My advice on this is to search for a program called Mp3gain which will put the volume of all your music at the same level so no constantly volume changing in the car.

Once the quirks are out of the way, it is a surprisingly good experience for the price. Not CD quality, but about 98% there and exceptionally clean with no static once a clean channel is found (I found 87.7 the best in my area. Bottom of the band is usually a good bet) which is surprising given the car in question is one with the antenna off the back (2005 Kia Optima) so getting good reception from a dinky fm transmitter is a bit hard to begin with. There are the occasional pops every so often but they are rare enough to not be a bother. All in all, deserves the 5 stars from me given my usage.

I do recommend though not using the included patch cable and using your own. For some reason it seems like the cheapest one they could include as the slightest jostle even at the headphone jack on the phone would cause scratchiness like you'd get from brushing up against a microphone. It is also too short for most cases. You can pick up one anywhere for pretty damn cheap and good quality if you don't have one somewhere in your house already. is a good place to look here.
HASH(0xa1d12ef4) out of 5 stars quit working after a while Sept. 22 2010
By Chris Ray - Published on
Verified Purchase
I bought this product a while back. I used it a few times. The concept is very good, however, the reliability is not. I will make a concession that maybe I'm doing something I shouldn't with it, but I really think the product just went bad. I hooked up an external cigarette plug to an external power supply that pushes 2.5A @ 12V DC. A car cigarette lighter is usually 10A 12V DC, or maybe 15A tops, so I doubt I put too much amperage thru the unit. It is possible I put too little juice thru it, but I doubt it, considering it takes almost no juice to run the unit. Anyway, I ran it on a torture test last week, and it failed. I ran the unit for approx. 8 hours, and the screen started flashing, and the unit kept rebooting. The song would play for a few seconds, and then cut out, and then try to play again. My advice is don't buy this unit--buy the Soundfly instead--it's a much better unit. I'll be doing a review on the Soundfly next.