The 9 Best iPhone FM Transmitters for Your Car in 2018

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There's nothing quite like listening to music in your car while driving with the windows down. But sometimes we want to play a specific song, listen to a certain podcast or an audio book. That's when you need an FM transmitter. These devices can plug into your lighter socket and then connect to your iPhone or other smartphone via a cord or Bluetooth, so you can transmit the signal from your portable device to FM radio. With these best iPhone FM transmitters you can make sure you always have your tunes with you.

Best Overall: Nulaxy Wireless In-Car Bluetooth FM Transmitter Radio

The number one best selling iPhone FM Transmitters on Amazon is chockfull of all the best qualities this line of technology has to offer. The Nuxlay KM18 offers a well-rounded price for any newcomer who wants to get the most out of an iPhone FM transmitter. It features a crystal clear blue LED display, ergonomic sound dial and buttons, as well as wireless Bluetooth connectivity.

The Nuxlay works with virtually any Bluetooth-enabled device, from your tablet to your smartphone. The device goes the extra mile with its included 5V-2.1A charging port, auxiliary port and even built-in microphone so you can take incoming calls with a breeze.

Users love the overall power and setup of the Nuxaly, with the most complaints coming from the rare occurrence of a pairing issue.

Best Sound Quality: Aphaca Wireless Bluetooth FM Transmitter

This car FM transmitter delivers crystal clear sound to deliver high quality audio when connected to your iPhone via Bluetooth. CVC technology delivers a duplex sound with noise cancellation technology to produce the most faithful reproduction of sound possible when accounting for radio interference.

In addition to stellar sound quality, this Bluetooth transmitter wirelessly transmits calls from mobile to the stereo system and can switch to handsfree mode from music whenever someone calls you. With Bluetooth 4.2 it picks up new devices easier than ever before. It also has a sleek elegant design with blue LED lettering. Finally, you can play music from 206 stereo channels or even from a MicroSD card. 

Best Budget: JETech Wireless FM Transmitter Radio Car Kit

When it comes to FM transmitters, there’s not a huge price difference between the top-of-the-line and the budget. In fact, it might only come down to a few dollars. But the JETech Wireless transmitter will save you a few bucks while still getting its job done. To use it, simply connect your device via its 3.5mm headphone jack, set it to a random FM channel and tune your radio to that channel. (Remember that it won’t work with an iPhone 7, which ditches the headphone jack.)

The transmitter has an easy-to-read display with intuitive buttons for adjusting frequency. It also comes with an extra USB port, so you can charge devices while driving. For best performance, we recommend using lower channels in the 80s and 90s.

Best for Dual Charging: Hands Free Bluetooth FM Transmitter by LIHAN

Want a functional Bluetooth FM Transmitter that comes with two USB charging inputs? LIHAN makes a no-nonsense device that gets straight to the point.

The Hands Free Bluetooth Transmitter by LIHAN features a 3.1A and 1A input offering both 12v and 24v charging for both you and a passenger. This means that your mobile devices can be charged in a jiffy all while listening to your favorite music. Its wireless Bluetooth 4.0 connectivity also offers low power consumption with a 5 percent loss of battery to your device each hour. Like many transmitters on the list, it includes a microphone for hands-free calling.

Buyers from Amazon praise the product for its ease of use and adaptability. More critical reviews noted that the connectivity could sometimes be an issue. 

Best for Calling: Criacr Bluetooth FM Transmitter

For a gadget that gets down to business, check out the Criacr Bluetooth FM transmitter. It offers full FM radio frequency range from 87.5 to 108.0MHz, which is more than most other devices support, thus decreasing interference. It also has two USB ports for dual charging when your gadgets get low on power. If you receive an incoming call, you can easily answer by pressing the dedicated call button and using the built-in microphone. And you don’t have to worry about surrounding sounds interrupting your conversation because the mic uses CVC technology to diminish noise and wind.

Best Features: Otium Bluetooth Wireless Radio Adapter Audio Receiver

Considering most iPhone FM transmitters hover around the same price range, the main thing that differentiates them is feature controls. The Otium FM transmitter bests all others when it comes to that category. With near universal compatibility, the transmitter works with all devices that have a 3.5mm headphone jack. (Sorry, iPhone 7 owners.) It has a built-in microphone that enables hands-free calls and music streaming via Bluetooth, plus a USB port to let you charge up your other devices, even tablets. Its high-contrast 1.44-inch LED display shows information such as voltage of storage battery, song info, caller ID and more. Its controls are highly intuitive and Amazon reviewers note that it feels solidly built.

Best Design: LDesign Wireless Bluetooth FM Transmitter

Looking for a unique style and design on par with Apple’s products? The LDesign comes in a variety of colors and is shaped like an L. It's only 4.9 x 1.5 x 3.8 inches, so it's small enough to fit in your front pocket. It comes with HI-FI stereo sound quality with echo cancellation and noise suppressing (CVC) technology. This means you can take in a call with its built in microphone and enjoy your music at a lowered volume without any overlapping sound interferences.

Besides its wireless capabilities, the device offers a TFcard and auxiliary input, so you can play music in your preferred method. It also comes with a 5V 2.5A USB port for quick charging. Buyers praise it for its design and ease of setup, while more critical reviewers state it’s prone to sound interference if your phone isn’t positioned in close proximity.

Most Compact: FayTun FM and Bluetooth Transmitter

At 34 x 34 x 87 millimeters, 34 grams and with a one-inch LCD screen, this tiny little FayTun easily earns its spot on this list as the most compact option. For the FM radio functionality, it offers transmitting from 87.5 to 108.0 MHz, so you’ll be sure to transmit accurately when playing music via your iPhone. It also packs in Bluetooth functionality for a more stable, albeit a little less plug-and-play, connection. Speaking of plug-and-play, once you hook this thing up to the cigarette lighter port, it’ll turn on and can be controlled easily and obviously via the buttons on the device itself.

While this is an iPhone list, it’s important to note that it’s compatible with any Bluetooth or FM-enabled device including Android devices. There’s a built-in microphone which lets you operate hands-free calling, which is especially seamless if it’s connected via Bluetooth. In terms of sound quality, the device is on point, too, as it offers echo-cancelation and noise suppression tech. Finally, there are dual built-in USB chargers, so you can plug in and juice up your device. It’s a great little transmitter that won’t take up much space on your console.​

Best All-in-One: Mpow Bluetooth FM Transmitter

The Mpow Bluetooth FM transmitter is a "jack of all trades" that delivers plenty of functionality at an attractive price point. Designed to connect directly to an air vent, the 360-degree rotation of the Mpow makes it an excellent option for viewing GPS directions while driving or safely changing radio stations. The built-in FM transmitter supports a frequency range of 87.5MHz to 108.0MHz and can connect to up to two Bluetooth 4.1 devices at once. The built-in microphone adds even more function with support for hands-free calling along with a 2.1A USB charging port for keeping your phone powered up. And it does all this while playing back music via FM channels. The adjustable fit of the clamp works with most smartphones ranging from 2.1 to 3.2-inches in width. Rubber padding on the grip protects your device from scratches.