11 Best Bluetooth FM Transmitters (Buyer's Guide)

The Best Bluetooth FM Transmitters for Your Car

Premium Pick

FM Transmitter, Nulaxy V4.2 FM Transmitter

Best Choice

Nulaxy Bluetooth Car FM Transmitter

Best Value

Wireless in Car Bluetooth FM Transmitter

Most brand new cars already have Bluetooth enabled FM transmitters. However, not everyone has a brand new car. Some can’t afford them, but others just prefer the simplicity and ruggedness of older vehicles, They’re less expensive to repair. They’re easier to customize. And they may even be better for certain tasks. For example, classic car owners may want to show off their vintage style. Jeep owners may want an older wrangler for rock crawling. And sometimes a car may be emotionally valuable like a hand-me-down or a family member’s favorite dependable land yacht. Whatever your reason for driving an older car, we’ve done the work to help you choose the best FM transmitter. 

The Best Bluetooth FM Transmitter Review

BEST CHOICE: Nulaxy Bluetooth Car FM Transmitter

Best Choice

Key features

The best FM transmitter on the market is the Nulaxy Bluetooth KM18 FM Transmitter. It has won the market over for its superior quality and reliability. It’s compatible with most mobile devices. It has advanced noise reduction technology to ensure crystal clear, high-quality sound. And it has a large 1.44 inch LCD screen so you can see your phone calls, music, battery voltage, and more without having to squint or direct your attention away from the road.

What we like

We like the large display screen on this FM transmitter. It’s clear and easy to read without having to stare at it, making it attractive as well as a safety feature. We appreciate that is has a 5V.2.1A USB port so you can charge your mobile devices safely and quickly. The Nulaxy also comes in several colors, allowing you to customize the look and feel of your transmitter.

What we don't like

This device has a persistence setting that will keep it on even the vehicle is off. For those who leave their car in a hurry or are absentminded and forget to turn the device off, it will drain your battery. This is the best FM transmitter on the market, but you will need to remember to manually turn it off when you leave your car. 

FM Transmitter, Nulaxy V4.2 Bluetooth FM Transmitter

Premium Pick

Key features

If you like the Nulaxy brand, you’ll love this FM transmitter. It’s ranked as one of the best Bluetooth FM transmitters on the market. This model, the KM21, has been redesigned to be more sporty. It’s compatible with most devices, including Apple, Samsung, Xiaomi, Oppo, and Sony. It has an advanced noise reduction system that’s guaranteed to give you a high-quality, crystal-clear sound experience. The screen is a large 1.44 inch LCD that’s easy to read. You can connect via Bluetooth, see call info, track your car battery, and play music. 

What we like

We like the sound quality of this FM transmitter. There’s no crackling noise or static, and it carries the signal with your device flawlessly. 

What we don't like

The device doesn’t turn off automatically. Luckily, there is a voltmeter function that allows you to track your car battery so you can determine your drivability should you leave it plugged in overnight.

Wireless in Car Bluetooth FM Transmitter

Best Value

Key features

This Bluetooth FM transmitter has a broad compatibility with Bluetooth enabled devices such as iPhone, Samsung, HTC, LG, Blackberry, Tablet, and iPad. It offers crystal clear sound quality using CVC technology and creates full duplex sound and noise cancellation. There’s a dual USB car charger that equipped with 5V/2.1A for fast charging. And it comes with a 12-month warranty as well as a 60-day money-back guarantee. You’ll also find the hands-free function useful when it comes to safety. It’s simple to switch from calls to music automatically. Lastly, there’s a warning that will flash when the battery is getting low. 

What we like

In addition to the USB charging port, we like that there is a built-in smart chip that will help ensure your device charges fast, all the way to a full charge. There’s no charging throttle when you hit 50% like some other devices. WE also appreciate that the manufacturer added a smart car locator. You can use the “Fast Find Car” app to find your car when you’ve had to park in busy parking lots or maze-like parking structures. You can also insert a U disk or micro SD card to play MP3 files directly on the FM transmitter. 

What we don't like

This FM transmitter will not randomly play music, nor will it allow you to choose to play the last song where it left off. Instead, it will always play from the very beginning of whatever playlist you’re playing. This can be a bummer when you want to stop for gas, but don’t want to start the playlist over again.

JETech Wireless FM Transmitter

Key features

The JETech Wireless FM Transmitter is compatible with smartphones and tablets without the hassle of requiring additional software or accessories to connect lesser-known devices. It will work with iPhones 6s/6/SE/5s/4S/4, iPad, Samsung Galaxy, and more. Listen to music, audiobooks, and more through your car stereo with high-fidelity sound. Plus, it can hold you FM signal with reliability and static-free quality. There is an extra built-in USB port for charging smartphones, tablets, GPS, and other devices. The display is easy-to-read and has tactile buttons so you can operate the FM transmitter without having to look at it while driving.

What we like

We like the functional versatility of this FM transmitter. It transmits radio signals, plays music, and will charge devices without any degradation to the sound quality, and with minimal draw on the battery. We appreciate the user-friendly design that features a large LCD display screen, clear readings, and tactile, responsive buttons for safety. Plus, it comes with a lifetime warranty, which speaks to the manufacturer’s confidence in their product.

What we don't like

When less experienced customers first install the FM transmitter and connect their devices, they often only see it register as a microphone and headset. They may need assistance to find the correct settings, initially.

Sumind Wireless Radio Adapter, Car Bluetooth Fm Transmitter

Key features

The Sumind Wireless FM Transmitter brings good, clear sound quality to your car without any interference. It’s integrated with noise cancellation CVC technology that creates full duplex sound and suppresses noise and wind. It has a built-in microphone feature that supports effortless hands-free talking. This FM transmitter comes with EDR (enhanced data rate), to ensure you see a faster data transmission rate, and that you’ll enjoy a much more stable connection between your Bluetooth device and the audio receiver. It also comes with Bluetooth version 4.2, which means it consumes less energy and lasts longer than previous models. 

What we like

We like the display on the Sumind Wireless FM Transmitter. It’s a 1.7 inch LCD backlight display that can rotate 270-degrees on its gooseneck for driver- and passenger-friendly viewing. It also comes with a magnetic car mount and two rubber magnetic plates. The magnetic function means it can grip your devices for secure hold, making this FM transmitter very driver-friendly. Customers also report great customer service, which has helped to push this make and model to the top of our list of the best FM transmitters.

What we don't like

The MP3 player does not allow for random play. And the total number of files recognized on a TF player is 3000. Some customers have reported that this is not a problem, but something they would add to their wishlist for the manufacturer and future models.

LDesign FM Transmitter

Key features

The LDesign FM Transmitter comes with the latest Bluetooth version 5.0 technology. It’s compatible with most devices. And it offers a stable transmission with the best anti-interference performance with superior durability. CVC technology means this FM transmitter has an anti-static design for full duplex sound quality and lossless music. There’s hands-free calling making this that much more safe when trying to work the controls while driving. The LDesign also offers the best after-sale services like a lifetime warranty and the quick refunds or free replacements.

What we like

There’s a lot to like about one of the best FM transmitters on the market. Something we are exceptionally happy with is the extra features that come with hands-free calling. It has a stable connection. There’s echo-cancellation that reduces background noise. Plus, the bluetooth transmitter works with voice navigation for a driver-friendly experience. We also like the customer service and the company’s commitment to making their customers happy, not just immediately following the purchase, but for the life of the product. 

What we don't like

You have to turn your phone volume on max to get the car stereo to a natural volume level. That’s not all the frustrating, but it is one extra step that is needed to use the device. It also means you need to remember to turn your volume back down when you leave the car.

Hands-free Call Car Charger,Wireless Bluetooth FM Transmitter

Key features

This Handsfree FM Transmitter has dual USB charging ports that work with most devices. It can intelligently identify Android and iPhone devices. It has low power consumption, making it a great choice if you tend to leave it running. It comes with mobile navigation and voice broadcast. It’s compatible with iPad, iPhone 8, x, 7/ 7-Plus, 6s/6s plus, 6/6-Plus, Samsung Galaxy, Google, LG, HTC, and Huawei. There’s a built-in microphone, and all call functions can be managed on the FM transmitter with voice control. There’s also a 12-month worry-free guarantee.

What we like

There are bonus features that customers have found helpful. For example, the FM transmitter announces itself when it is powered up, including every time you start your engine. It then lets you know whether the voltage is normal and identifies anything that needs your attention. 

What we don't like

Like many FM transmitters, the best FM transmitters included, this unit doesn’t turn off automatically. Luckily, because of its low power draw, customers have reported that it can take several days to wear down their car battery completely. 

(Upgraded Version) Bluetooth FM Transmitter, Sumind Wireless Radio Adapter

Key features

The Sumind Wireless FM Transmitter has a broad compatibility with mobile devices. It can intelligently detect your device and provide fast charging. It has large tactile keys for easy operation while driving. The display is a 1.7 inch LCD backlight display. It has a gooseneck with 270-degree rotation for ease of use by the driver or the passenger. Clear sound when playing music as well as taking calls. CVC technology creates full duplex sound and suppressed noise and wind. The built-in microphone also helps to reduce interference. The EDR (enhanced data range) feature ensures faster data transmission rates for a stable connection with devices.

What we like

Superior customer service is a common theme among happy customers who have had questions or challenges, not only during installation and set-up but long after the FM transmitter has been in use. Months after their purchases, customers have contacted customer support with a question, and have reliably reported they were impressed.

What we don't like

There are occasional reports of defective devices. Luckily, customer support is responsive. Those who reported their troubles and any defects were immediately offered a refund or replacement, as well as assistance with installation and set-up.

VicTsing (Upgraded Version) V4.1 Bluetooth FM Transmitter

Key features

The VicTsing Bluetooth FM Transmitter is an attractive compact design for distraction-free driving. There’s a built-in microphone for hands-free operation. You can play music from Bluetooth-enabled devices via the FM signal, stream music from a TF card, transmit music from a USB connection, or play music from the aux input using the included 3.5 mm audio cable. There are dual USB ports to charge and operate multiple devices. It’s compatible with most mobile devices, and you can use the FM transmitter to transfer music from your external audio device to your car radio.

What we like

One of our favorite features with the VicTsing FM transmitter is the aux input and output. It features Bluetooth 4.1 technology that can play music from your device, but it can also play music using the included cable. That means those passengers who want to join the road trip fun and play their playlists, can plug-in. This simple aux cable makes this FM transmitter that much more versatile. We also like that this unit is compact and attractive instead of being bulky and unnecessarily taking up more space. 

What we don't like

There have been some reports of bugs, one of which will call the last person you texted when you engage the call button, rather than waiting for direction on who to call.

Anker Roav SmartCharge F2 Bluetooth FM Transmitter

Key features

The Anker Roav SmartCharge FC Bluetooth FM Transmitter offers a stable connection for reliable music streaming straight from your phone to your car’s sound system. The Roav Charger app records your car’s location, so you never have to struggle with forgetting where you left your vehicle, whether it’s an unfamiliar side-road, a busy parking lot, or a confusing parking structure. There are dual USB ports for multi-device, high-speed charging. You can also save music and other audio files to your car’s sound system through these ports. Enjoy effortless hands-free calls for driving safety. And call on the manufacturer’s friendly customer service with questions or challenges. It’s worth noting: this FM transmitter is not compatible with 2007 VW Jetta, 2011 Nissan Rogue, 2002 Nissan Altima 2.5S, 2001 Audi A4, 2007 Dodge Grand Caravan, 2011 Mazda Miata, 2005 Toyota Highlander, 2004 Saturn Ion, 2005 Honda Civic, 2008 Chrysler Town and Country.

What we like

All our favorite reasons this is one of the best FM transmitters are summarized here. You can connect via Bluetooth to play music over FM frequency and broadcast your playlist. The advanced technology isolates your voice for crystal-clear hands-free calls. It comes with PowerIQ, which is the technology used to identify your device to deliver high-speed charging intelligently. You’ll get a strong, stable connection for both music and hands-free calls. The Road Charger app will help you find your car and always adds a pin to the map the moment your Bluetooth connection is lost. You can plug a jump drive into one of the dual USB ports to play downloaded music. Finally, you can check the status of your car’s battery anytime, by using the app to make sure there’s no sharp drain on power.

What we don't like

Be sure the GPS on your phone is calibrated in order for the map and car-finder option to work. Also, some customers have noted that they feel the design isn’t robust enough. There enough happy customers across FM transmitter industry, that this product still makes the list of best FM transmitters.

FM Transmitter, Tohayie Bluetooth Wireless Radio Adapter

Key features

The Tohayie Bluetooth FM GTransmitter has broad compatibility including iPad, iPod, Tablet, iPhone XS/ X/ 8/ 8 Plus/ 7 Plus/ 7/ 6/ 6S Plus, Android, as well as MP3 and MP4 Players via the 3.5mm audio jack. It has a large 1.4 inch LED screen, making it easy to read at a glance while on the road. Perfect for road trips or camping and similar adventures. The 21-key remote means anyone in the car can share control of the music. Or you can control the music from the campfire, block parties, and other fun locations that need a little music while your phone or memory drive is plugged in. This FM transmitter also comes with a 12-month, 100% money-back guarantee.

What we like

We appreciate that Tohayie provides reliable 24-hour customer service with real problem-solvers to help you with any challenge. We also like the remote control for sharing music play. 

What we don't like

The on/off button is on the side of the unit. That means that depending on the car make and model it can be difficult to access the on/off button because it may end up being flush with the dashboard. Some customers with large trucks and wide dashboards have reported that the display can be hard to see without a gooseneck to turn the device in their direction. 

Buying Guide & FAQ for Bluetooth FM Transmitters

The best Bluetooth FM transmitters are difficult to find. It can be tough to know which ones are the most reliable or carry the best features that will serve your needs. With this guide, you’ll be better able to understand exactly what you need and which devices are counted as the best, so you can make the best buying decision. 

What to consider when buying a Bluetooth FM Transmitter 

FM transmitters may seem like they’re all the same, but there are different features that will help you make a decision about the best Bluetooth FM transmitter for your needs, and your car. Here are just a few features you may want to consider when checking boxes for the best Bluetooth FM transmitter. 

  • Crystal clear sound with high-performance technology.
  • Compatibility with your Bluetooth enabled phone and iPad or tablet.
  • Universal compatibility so it will connect with your passenger’s devices.
  • Responsive customer service that will help you problem-solve, not just answer the phone. 
  • Money-back guarantees, especially those that last months, even years, speak to the manufacturer’s confidence in their product. 
  • A limited time warranty is a good sign. A lifetime warranty is even better. 
  • The display is an important factor. Do you want it to be compact? Or do you want a large screen with a gooseneck mount so you can easily see the display while driving without squinting? This can be a safety factor. 
  • Voltage readings can be helpful, so you always know the state of your car battery. 
  • High-speed charging is essential to many. Nobody wants to play music, only to arrive at your destination with a dead phone. 
  • There’s a car finder feature many of the best Bluetooth FM transmitters have that will allow you to add a pin to your map so you can easily find your car at the end of the day. 

There are many more available features, but in general, the features listed here are the ones you are most likely to find in the best FM transmitters. Think about what you would like and use this list as your checklist. Then shop this list of the best Bluetooth FM transmitters. For answers to some for the most common questions, check out our FAQ below. 

Why do you need a Bluetooth FM transmitter in your car?

Everyone likes to play tunes while they’re driving. It’s one of the least distracting ways to keep your energy up while you’re getting from A to B. Older cars may not get excellent sound quality, but an FM transmitter can help capture signals and transmit crystal clear sound. What’s better is that a Bluetooth FM transmitter can connect to your phone. In some cases, it can connect to a memory device as well. Bluetooth allows you to play the music you want to hear, regardless of what’s on the radio. It’s also perfect for listening to audiobooks and taking audio GPS directions. 

As life speeds up, we all want to be able to take the occasional call while driving. Or we may want to let someone know we’re running late. Since it’s dangerous (and illegal) to talk on the phone while driving, the Bluetooth hands-free option is will keep you and your passengers safe. 

FAQ

Which is the best FM transmitter for a car?

We’ve searched long and hard the best Bluetooth FM transmitter on the market. There’s a lot to consider, like the quality of sound, ease of use, safety features, bonus features, and more. Our overall favorite for performing well on all specification is the Nulaxy Bluetooth Car FM Transmitter Audio Adapter Receiver Wireless Hands-Free Car Kit W 1.44 Inch Display – KM18 Black. 

Which Nulaxy FM transmitter is best?

Well, you already know that our overall favorite for the best FM transmitter is the Nulaxy Bluetooth Car FM Transmitter Audio Adapter Receiver Wireless Hands-Free Car Kit W 1.44 Inch Display – KM18 Black. That said, there is another one that comes in at a close second place for us. It’s the FM Transmitter, Nulaxy V4.2 Bluetooth FM Transmitter, Wireless FM Radio Car Bluetooth Adapter (KM21-Black), which is the KM18’s slightly more compact and sporty brother transmitter. 

What is the best FM transmitter for iPhone?

While all the FM transmitters we’ve listed are compatible with iPhones, there are a few worth shopping for specific features. Of course, the Nulaxy Bluetooth Car FM Transmitter Audio Adapter Receiver Wireless Hands-Free Car Kit W 1.44 Inch Display – KM18 Black is our overall favorite. We also love that the JETech Wireless FM Transmitter Radio Car Kit for Smart Phones Bundle with 3.5mm Audio Plug and Car Charger (Black) is compatible with iPhones all the way back to the iPhone 4. This not only means older phones can use the device, but it also shows a commitment on the part of the manufacturer to maintain their product integrity for as many consumers as possible. Most companies just remain compatible with the most recent device versions because it’s less expensive and is easier than ensuring all software for all devices is available on their units. 

How do I find the best FM transmitter frequency?

There are a few ways to do this. Always follow the manufacturer’s directions, first and foremost. You can also Google blank radio stations in your area to come up with a frequency that will work for you. And most FM transmitters will have an accompanying app to help guide you through the process. 

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