The 3 Best FM Transmitters In 2021 🇺🇸

Most people prefer to listen to their favorite songs while driving. It has caused many drivers to opt for a smartphone, mp3 player, or other streaming device to get music. The problem with smartphones and mp3 players it hey lack quality.

The best sound quality in a car can only get produced with a built-in stereo or FM transmitter.

FM transmitters have soared in popularity over the last few years. The market has become saturated with options, and not every FM transmitter available is of good quality. As a result, we have put together a guide to the best FM transmitters for 2021, including our 3 favorite selections.

Reviews of the Best FM Transmitters





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FM Transmitter Guide

When on that daily commute, messing around with the radio to find the right station can take a while and is dangerous if you aren’t giving your full attention to the road. This is why a lot of people opt for a reliable FM transmitter. It removes the hassle and risk so you can keep your eyes on the road and your favorite music or podcast in your ears.

They are ideal for older vehicles that don’t have all the mod cons, opening up your sound system to a world of audio possibilities. However, some models are better than others so to make sure you find a reliable one, we have created the following buyer’s guide.

What To Look For In An FM Transmitter

 Sound Quality

A lot of this will be down to the quality of the speakers you have in your vehicle but in terms of the FM transmitter, there is a lot it can do to help. For starters, it must be able to maintain a reliable connection otherwise your audio will stop and start or fade in and out which can be frustrating.

 Easy To Use

You don’t want complicated instructions for using your FM transmitter and a few minor adjustments should be all it takes to enhance the audio quality. Most products make it easy for you to get the frequency right so look for these if you can.


There is no point in buying an FM transmitter that isn’t right for your current set up so make sure it is compatible with your phone and your car. Before you press buy, make sure your car is compatible and this can be in the type of radio it has as well as the power connection. Most of the time, a cigarette lighter is sufficient just be sure to check it can work with what you will be connecting it to.


Some FM transmitters are simple devices that get the job done with little fuss whilst others can give you extra features. This can come in the form of a USB charging port to keep your phone charged so you never have to turn the tunes off.

Some brands can give you control of the music so skipping tracks is easy and you don’t have to touch your phone.

 A Screen

Some FM transmitters are quite simple in that they rely on your phone to do all the hard work so you have to use it as a display. Many products come with a display screen. Even though they are usually no bigger than an inch or two, they allow you to skip between tracks with ease.

Why Should You Use An FM Transmitter?

Anyone with an older car can feel restricted in their audio options but thanks to FM transmitters, there are plenty of possibilities including the following.

 Hands-Free Calls

You should never pick up your phone and take a call at the wheel, it’s against the law and downright dangerous. To keep yourself and everyone else on the road safe, an FM transmitter can be used to take calls.

A lot of them have built-in microphones and will make it easy for you to know when a call is incoming by cutting the music. By playing through your speakers, you can hear the caller and don’t have to miss a call or find a place to pull over.

 Can Play Any Audio

The same radio stations can get boring, not to mention restrictive. When you want to listen to a particular artist or playlist, an FM transmitter is great for playing the audio you want through the speakers. Podcasts, audiobooks, and music streaming apps can all be used to make your commute a lot more enjoyable.


It can cost hundreds to upgrade the sound system in your car which, thanks to an FM transmitter, is an avoidable expense. They look great, work well when you buy a quality product, and won’t break the bank.

Does A Bluetooth FM Transmitter Work On Older Cars?

Some people think that the vehicle has to have built-in Bluetooth in order to work but this isn’t the case. As long as the car has a cigarette lighter for a power source and a radio, the device connects via your phone’s Bluetooth to open up a lot of audio possibilities.

They can work by connecting to phones, laptops, tablets, and beyond.

Why Trust Us?

Even if you don’t know anything about bluetooth FM transmitters, you can still make a smart buying decision with the right information in hand. At Swipereviews, we perform extensive research in every product category. To avoid bias, we always decline offers from manufacturers for “free” samples. We want to be your go-to source for honest, thorough product reviews you can trust.