Best Bluetooth FM Transmitter

To find the best Bluetooth FM transmitter for your vehicle, we began by researching the essential features that will make sure you can bump to your favorite tunes. Factors such as the number of charging ports, the included display, media sources beyond Bluetooth, and the device’s form-factor, came into play. Whether you want to charge your device while streaming to your car or want to connect your media devices with more than Bluetooth, we have a solution for you.

After extensive research, we found Nulaxy’s KM18 Bluetooth FM Transmitter to be our top pick for the best Bluetooth FM Transmitter. Nulaxy offers a reliable product thanks to strong signal strength while packing in other useful features. Want to use an AUX cable rather than Bluetooth – this transmitter has you covered.ou can also monitor its status easily, thanks to the built-in LCD. Keep reading to find the best Bluetooth FM Transmitter for your needs.

Top 5 Best Bluetooth FM Transmitter

 #1  Nulaxy KM18 Bluetooth FM Transmitter – Top Pick

WHY WE LIKE IT: The Nulaxy KM18 delivers a transmitter that outputs a strong signal, ensuring you never lose your tunes or fight to find a clear station; it also offers a USB charging port to keep your device juiced-up.

Pros
  • Most reliable connection
  • Easy to read LCD display
  • Available in multiple colors
Cons
  • Lacks multiple USB ports

The Nulaxy KM18 is our top pick for the best Bluetooth FM transmitter due to its exceptional reliability and FM signal strength. While some transmitters make you fight to find a clear station void of static, the KM18 cuts through the noise and broadcasts your music in high-quality to your car radio without issue. The built-in LCD makes it easy to see whether or not your device is connected, as well as access songs stored on an SD card if you prefer that ability over the Bluetooth function.

The KM18 does feature a single USB port to keep your smartphone, or other device charged up while in use, but we would have liked to see at least two ports with many competitors offering that as standard. We do like that Nulaxy offers the KM18 in multiple colors for a bit of personalization, including glossy black, matte black, gray, silver, and blue. The Nulaxy KM18 easily wins as the best Bluetooth transmitter for cars. You can use it with the best Bluetooth headsets.

 #2  IMDEN Bluetooth FM Transmitter – Honorable Mention

WHY WE LIKE IT: IMDEN offers a Bluetooth FM transmitter with a super compact design that won’t stick out in your car, and dual USB charging ports to keep your devices topped up. Best of all, it features Quick Charge technology for faster charging.

Pros
  • Most discreet & dual USB ports for charging
  • Small space-efficient design
  • Offers Quick Charge capability
Cons
  • No detailed display

The IMDEN is the most compact Bluetooth FM Transmitter in our roundup; if you don’t have much space in your vehicle, or you want to minimize the appearance of your new accessory – this is the option for you. We love that despite the IMDEN’s small form factor, it is still able to fit dual USB ports for charging up your devices. One of the ports even features Qualcomm’s Quick Charge 3.0 for charging devices at faster speeds.

The IMDEN’s FM transmitter is impressive and seems too cut easily through static, allowing you to enjoy your music without interference. Due to the small size of the device, the included display only shows the currently tuned station; thus, you will miss out on more detailed information such as the currently connected device and caller-ID. Most people make sure they always have car accessories like the best portable air compressor, but I need music and this makes me happy.

 #3  VicTsing Bluetooth FM Transmitter – Best Compact

WHY WE LIKE IT: VicTsing offers a small Bluetooth FM Transmitter that is great for tight spaces, while still retaining two USB charging ports and an LCD – a small design doesn’t need to sacrifice abilities.

Pros
  • Compact no-sacrifice design
  • Tiltable LCD for easy viewing
  • Strong wireless connections
Cons
  • Design may be inconvenient

While we do have a more compact option on our list, the VicTsing Bluetooth FM Transmitter still takes the award for the best compact due to it providing a small form factor without sacrificing any features. Despite its small size, the VicTsing still offers two built-in USB ports for charging, as well as an LCD that displays information such as the currently connected device, current playing song, and even your car battery’s status.

The LCD screen can be tilted for easy viewing, making it quite flexible. The shorter, yet wide, design of the VicTsing may make it difficult to fit into enclosed spaces – we recommend this unit for car accessory ports that are out in the open and not tucked away. Overall, we do love the VicTsing with its compact design and a strong FM transmission signal. Now that you have your tunes, don’t neglect car essentials like the best cabin air filter.

 #4  LIHAN Bluetooth FM Transmitter – Best Budget

WHY WE LIKE IT: LIHAN provides all the features of higher-end Bluetooth FM Transmitters, such as dual USB charging ports, multi-source playback, and an easy-to-read LCD, all at the most affordable price on our list.

Pros
  • Built-in speaker phone
  • Multi-device charging ability
  • Able to check the car battery
Cons
  • Display shows only FM frequency

The LIHAN Bluetooth FM Transmitter is the best choice if you want an affordable option that won’t have you making second-guesses. Despite its low price point, the LIHAN offers a reliable FM transmission in addition to extra features. The dual USB charging capability is one of our favorites, mainly since one of the ports features a high faster-charging amperage to ensure your devices’ never run out of juice on the road.

In addition to your smartphone’s battery, the LIHAN gives you a reading of your car battery whenever the vehicle is started. The display is simple and only shows the currently tuned FM frequency, but we don’t believe it detracts from the overall experience – this is sure one great option for your next road trip. Just make sure to pack the best tire pressure gauge before you set out. Be sure to also check out the Sumind Wireless Radio Adapter Hands-Free Car Kit. Not only can you to play music through Bluetooth connectivity, but to further emphasize this device’s ease of use, you can answer phone calls hands-free with the built-in microphone. Also the LCD display positioning can be adjusted, so whoever’s in charge of music can see this wireless car stereo system easily, no matter where they’re sitting in the car. Check out this product on Amazon and show off your new wireless in-car sound system to your friends and family.

 #5  ZEEPORTE Bluetooth FM Transmitter – Best Features

WHY WE LIKE IT: ZEEPORTE delivers the most feature-packed Bluetooth FM Transmitter we could find with three USB charging ports – one with Qualcomm Quick Charge, five built-in music equalizers, and built-in device protection.

Pros
  • Triple USB charging ports
  • Built-in music equalizers
  • Device protection to avoid issues
Cons
  • Slightly bulkier than competition

The ZEEPORTE seems to sport it all, including triple USB ports to charge up to three separate devices while traveling. Have two phones and a tablet that needs charging? Not a problem at all with these ports. Best of all, the ZEEPORTE features a Qualcomm Quick Charge port for super-fast charging of devices. When you are ready to pair your device, the large screen can keep you informed of what’s connected, the current song playing, incoming phone calls, and even your car’s battery status.

Once the tunes start playing, the ZEEPORTE even features a built-in equalizer so that you can fine-tune your music based on four genres – pop, jazz, rock, and classical. Despite being a bit larger than some other devices, we can’t help but fall in love with this option for its endless list of features. It should last you quite a while also, as it features built-in over-current, over-voltage, temperate, and short-circuit protection. You can also choose the best satellite radio for the car for your tunes. Be sure to check out another one of the best Bluetooth FM Transmitters with great features: the ROAV SmartCharge F0 Bluetooth FM Transmitter. This audio adapter and receiver features rapid in-car charging with its dual USB ports, hands-free calling with Bluetooth 4.2 that has stable connectivity and noise reduction, and broadcasted music from a phone into crystal clear stereo sound. Your voice reception during phone calls is also enhanced with the sensitive microphone. After the simple set up of plugging it into your vehicle’s cigarette lighter and linking your smart device, you’ll be ready to go for your next commute or road trip.

How We Decided

With so many different Bluetooth FM transmitters on the market, we condensed our guide down to only the best options available based on critical factors including each units’ number of built-in charging ports, media source options, digital display, and overall form factor. Additionally, we ensured that each item on our list met a minimum set of criteria, this way you know that the option you choose will be ready to rock out with you on the road – leave bags of concern behind.

For charging ports, we made sure that each FM transmitter we selected contained at least one. While this seems like a no-brainer, a large number of transmitters are available that won’t allow you to charge your smartphone during use, potentially resulting in a dead battery. Additionally, each unit we picked shows the currently tuned frequency on a bright, vibrant digital display – no fighting daylight to see what station you are tuned into at the moment.

When it comes to media sources, all of our options allow you to stream via Bluetooth as well as connect up directly with an AUX cable or slip in an SD card. Bluetooth connections are always easy with our selections – simply plug in the device and connect via your smartphone’s Bluetooth settings. All of our selections were researched to ensure high reliability.

Lastly, we ensured the form factor of each unit would fit in a car without causing a mess of cables; all of our selections are entirely self-contained and do not require running wires to any part of your dashboard.

Best Bluetooth FM Transmitter Buyer’s Guide

 

Features

  1. Charging Ports: While using your FM transmitter to broadcast music to your car radio, you’ll want to make sure that your smartphone or tablet doesn’t die. Selecting a transmitter with a charging port might be essential to keep the tunes going. Some transmitters also feature additional ports to charge multiple devices as well as Qualcomm’s Quick Charge technology, allowing your device to charge up faster.
  2. Digital Display: Be sure to select a digital display that gives you the information you wish to see when connected. Some displays will only show the tuned FM radio frequency. In contrast, others will show the name of the device connected, show info about the currently playing song, and even allow you to adjust the music equalization.
  3. Media Sources: Want to listen to music from more sources than just Bluetooth? If you have friends who want to plug-in their devices with ease, selecting a Bluetooth FM transmitter with a built-in AUX port might be a great idea. Some units also allow you to load music from a USB flash drive or SD card.
  4. Formfactor: We recommend finding an FM transmitter that does away with wires on your dashboard, selecting all-in-one units such as the ones featured in this article. Additionally, be sure that the neck of the device is flexible enough so that you can see it from the driver’s seat once it is plugged into your car’s accessory port.

Bluetooth FM Transmitter FAQs

Does car antenna placement affect sound quality?

The Bluetooth antennas on our list will provide reliable signals no matter where your car’s radio antenna is positioned. Some weaker transmitters might have issues with distant antennas at the other side of the vehicle, but these will typically output weak signals that are best avoided overall.

Which is the best FM transmitter for car?

In our research, we found the Nulaxy KM18 to be the best FM transmitter for cars and other vehicles. The KM18 outputs a strong signal, ensuring you never lose your tunes or fight to find a clear station; it also offers a USB charging port for your device, so you never run out of battery.

What is a Bluetooth FM transmitter?

A Bluetooth FM transmitter allows you to transmit music from a tablet or smartphone with Bluetooth to your car radio; it works by first connecting your device via Bluetooth, then outputting an FM radio signal that you can tune into using your car radio.

Can you add Bluetooth to an older car?

A Bluetooth FM transmitter is an excellent way to add Bluetooth to an older car. As long as your vehicle has a 12V accessory port and a radio, the transmitter will allow your smart device to connect then begin streaming music and phone calls wirelessly.

How can I add Bluetooth to my car without AUX?

Bluetooth FM transmitters do not require an AUX port for use in your vehicle; thus, they make an excellent option for cars without AUX connections. A Bluetooth transmitter will instead require that your car has a working radio and a 12V accessory port.

How can I play Spotify in my car without Bluetooth?

If your car doesn’t feature Bluetooth, you can still stream a service such as Spotify or Apple music by using a Bluetooth FM Transmitter; this will allow you to connect via a Bluetooth connection, then transmit the audio to your vehicle’s radio.

What is the best FM transmitter frequency or station?

The best frequency or station to transmit on will depend on your local. To find an ideal frequency for your device, before plugin it in, scroll through the radio dial and locate a frequency that has only slight static and isn’t receiving any transmissions.

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Michael Archambault

Michael Archambault is a technology writer and digital marketer located in Long Island, New York. For the past decade, Michael has covered the consumer technology space, reporting on the latest industry offerings while crafting comprehensive how-to guides, hands-on-reviews, and opinion-editorials. Michael has worked for Amazon.com's DPReview, Mobile Nations' Windows Central, onMSFT, PetaPixel, Dotdash’s Lifewire, and Digital Trends.

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