This MP3 player wireless FM transmitter combo gadget allows you to listen to MP3s on an SD card or USB adapter. The chipset supports up to 320 kbps and is compatible with slotMusic cards using the adapter that comes with the cards or a microSD to SD converter.

There are a variety of these little gadgets available, mostly from online outlets. We like this one. It couldn’t be easier to use and the sound was very good with no interference on the lower end of the FM dial. It’s a bare bones unit that’s cheap but still works.

If you don’t have an auxiliary input on your stereo head unit in your vehicle than this is a good option. It’s much better than using a cassette adapter with a cord. Not to mention this adapter has the MP3 player built in. This is truly all you need to access fast libraries of MP3 music in your vehicle.

The unit plugs into the cigarette lighter socket and plays your music through the car's FM stereo. The unit accepts both SD and SD HC, high capacity, memory cards. We used it with slotMusic cards from SanDisk and it worked seamlessly. You can also connect a portable player you have with the audio-in jack. However, we think that kind of defeats the purpose of have an all-in-one unit like this.

Let’s say you pick this unit up for $15 and buy an SD HC card for another $10. You’re talking about at least a 4GB MP3 player for $25. It’s easy to take this for granted but that’s really incredible.

Anyway, if you’ve been looking for a really simple and cheap way to play MP3s in your car these little gadgets are worth a look. We were really impressed at how good this little sucker sounded. You do have to adjust the volume and tweak the settings for the best sound but it’s no big deal and at this price well worth the effort.

Features include:  Blue backlit LCD screen, SD and SDHC ready, audio in jack, used 12V cigarette lighter, 206 selectable stations, included remote (very cheap but works), Swivel design makes it easier to read.

Visit Amazon for more information about wireless MP3 accessories. This is an OEM unit so we don’t have a brand name but you'll recognize this unit by the buttons and swivel base.