The Best FM Transmitters 2025

1. Scosche - Pro Bluetooth FM Transmitter with Power Delivery - Black

The Scosche BTFREQ Power Delivery universal Bluetooth 5.0 car kit adapter is perfect for making hands-free calls and wirelessly streaming music from your Bluetooth compatible device to your vehicles radio with a crystal-clear crisp sound. Enjoy crystal clear calls inside noisy vehicles and the multi-function button (MFB) allows you to answer incoming calls with a simple push of a button. It also controls BTFREQ’s volume up/down, play/pause, answer/hang up the phone or voice controls like Siri and Google Voice. Power Delivery 3.0 technology charges your compatible devices up to 3 times faster versus a conventional USB charger which delivers a blazing fast charge by detecting and providing your device with the fastest most powerful charging speed. The convenient design of the LCD display provides an easy to read interface. It’s easy to sync; just find an unused FM frequency on your vehicles stereo and match the same frequency on the FM Transmitter. Perfect for use in your vehicle while making hands-free calls, listening to music every day or during a long road trip! The BTFREQ is backed by Scosche's Lifetime Tech Support and 3-year warranty.

2. Rexing - AUX2 Mini Bluetooth Receiver with Dual USB Enhanced Bass and Voice Control - Black

Compatible with any car cassette player; dash-mounted push button; built-in microphone; flat cable design

The Rexing AUX2 mini Bluetooth receiver allows you to hear the phone music and phone call from the car radio. Place it on the car dashboard to make the operation easier.

3. iSimple - Bluetooth 5.0 FM Transmitter with Expandable Arm for Music Streaming, Charging, and Hands-Free Calling - Black

The PSW10 is a high-powered subwoofer that comes in a modern design and delivers deeper, tighter bass for your movies and music. Features a front-firing 10" dynamic balance woofer powerful lows for an ultimate home theatre experience. It offers a continuously variable low-pass filter (80-160 Hz) and allows easy integration with your existing sound system

Add Bluetooth to any vehicle using your car’s 12V socket and FM radio with the iSimple Bluetooth 5.0 FM Transmitter with Expandable Arm for Music Streaming, Charging, and Hands-Free Calling. This Bluetooth 5.0 hands-free car kit features an expandable arm making it easy to fit into any vehicle, even when the 12V socket is in a pocket. The FMBTIS also features a large LCD screen for easy tuning and use and dual USB charging ports. Enjoy your smartphone’s music streaming through your car’s speakers via clear, crisp FM transmission and customize your sound with the built-in equalizer with four different sound modes. The built-in microphone supports hands-free calling to enable you to drive safely with your hands on the wheel and your eyes on the road.

4. iSimple - Bluetooth 5.0 FM Transmitter for Music Streaming, Charging, and Hands-Free Calling - Black

Compatible with most Bluetooth-enable devices; buil-in microphone; buil-in 370 mAh Li-polymer battery; 3.5 mm stereo phone jack; mini USB

Enjoy your smartphone’s features through your car’s speakers via clear, crisp FM transmission with this iSimple Bluetooth 5.0 FM Transmitter for Music Streaming, Charging, and Hands-Free Calling. The BTFM1IS features dual charging ports and a built-in microphone to support hands-free calling, enabling you to drive safely with your hands on the wheel and your eyes on the road.

5. Scosche - BTFREQ Bluetooth FM Transmitter Hands Free Car Kit w/ Dual USB ports V5.0 - Black

Compatible with MagSafe iPhone series cell phones; magnetic; cell phone grip and stand, secure grip, functions as convenient stand; swappable PopTop; wireless charging compatible; removable design

The Scosche BTFM5 Bluetooth Hands-Free Car Kit is perfect for making calls and wirelessly streaming music from a Bluetooth compatible device to your vehicle's radio with crystal-clear crisp sound. The dual 2.4 Amp USB ports car charger plugs into any vehicle's 12V power port and charges a device at the same time. The LED display provides an easy to read interface to sync to the transmitter. The FM Transmitter allows you to safely and conveniently switch between radio stations, control the volume, answer phone calls, or switch between tracks.

6. Scosche - BTFREQ Bluetooth FM Transmitter Hands Free Car Kit - Black

Compatible with MagSafe iPhone series cell phones; magnetic; cell phone grip and stand, secure grip, functions as convenient stand; swappable PopTop; wireless charging compatible; removable design

The Scosche BTFREQ universal Bluetooth hands-free car kit is perfect for making hands-free calls and wirelessly streaming music from your Bluetooth compatible device to your vehicles radio with a crystal-clear crisp sound. You can stream audio files using your device’s Bluetooth or using the 3.5mm output on your device with the included 3.5mm AUX audio cable. DSP echo cancellation lets you enjoy crystal clear hands-free calls even in noisy vehicles. The 10-Watt 2.1AMP illuminated USB port car charger plugs into any vehicles 12V power port to power the BTFREQ and charge your device at the same time. The convenient design of the LCD display provides an easy to read interface which can be adjusted and viewed from multiple different angles with the flexible neck. It’s easy to sync; just find an unused FM frequency on your vehicles stereo and match the same frequency on the FM Transmitter. One-click access makes it easy to use Siri and Google voice on your device with the BTFREQ FM Transmitter. The FM Transmitter’s remote control allows you to safely and conveniently switch between radio stations, control the volume up or down, play/pause, or switch between the previous or next track. The Scosche BTFREQ universal Bluetooth hands-free car kit and FM Transmitter is compatible with your iPhone, iPod, Android, MP3 Player, Bluetooth compatible or any other mobile device with a 3.5mm AUX output port. Perfect for use in your vehicle while making hands-free calls, listening to music every day or while taking a long road trip!

7. Rexing - FMT2 Bluetooth FM Transmitter Hands-Free Car Kit with QC3.0 and Smart 2.4A Dual USB Ports - Black

Compatible with any car cassette player; dash-mounted push button; built-in microphone; flat cable design

The Rexing Multifunctional FM Transmitter allows you to play music via Bluetooth 5.0 or USB without having to replace or purchase a whole separate audio system. We add value to this all-in-one kit by including functions like advanced 3.0 Quick Charging, hands-free calling and Hey Siri/Google Assistant commands.

8. Scosche - BTFREQ Bluetooth FM Transmitter Hands Free Car Kit w/ Dual USB ports - Black

Compatible with most devices with 3.5mm input; Bluetooth connectivity; up to 30' of range; rechargeable battery; 90° AUX jack

Make calls in the car with this Scosche BTFreq hands-free car kit. Featuring Bluetooth connectivity and a built-in FM transmitter, this car kit lets you connect phones to car stereos for streaming audio and making hands-free calls. This Scosche BTFreq hands-free car kit has two built-in ports that let you recharge devices on the road.

9. Car and Driver - FM Transmitter Phone Mounting Kit - Black

Redesign your drive with the FMX500 FM Transmitter Phone Mounting Kit. A premium accessory designed to streamline your in-car experience. Play your favorite music via Bluetooth, TF card or USB flash drive and make crystal-clear phone calls - All through your vehicle's sound system. Allows you to talk and navigate, hands-free, with a voice-activated smart assistant. Mounts firmly to the windshield, dashboard, or air vent according to your preference.

10. Scosche - BTFREQ Mini FM Transmitter - Black

Scosche BTTRFM-RP Portable Bluetooth Transmitter/Receiver FM Transmitter & Wireless Audio Receiver. This compact wireless Bluetooth transmitter/receiver offers multiple listening options. It will use Bluetooth from your phone and transmit FM to your car or home stereo. You can also send analog audio to 3.5mm headphones or other analog AUX input including your TV or other devices. This has a low latency encoder that will ensure a smooth and stable Bluetooth audio streaming experience but does not have hands free calling and no TF card slot. Included is a USB-C to USB-C 1ft. cable and a 3.5 to 3.5 1ft. audio cable. Included in the box are the wireless audio transmitter/receiver, 1 Ft. USB-C to USB-C charging cable, and 1 ft. 3.5 mm audio cable. This will use Bluetooth from your phone and transmit FM to the car or home stereo. You can also send analog audio to 3.5mm headphones or other analog AUX input including your TV or other devices and transmit Bluetooth to headphones or speakers. This does not have hands free calling and no TF card slot.

The Scosche BTTRFM-RP Wireless Bluetooth Audio FM Transmitter and Receiver Compatible with Most Bluetooth Devices. This compact wireless Bluetooth transmitter/receiver offers multiple listening options. It will use Bluetooth from your phone and transmit FM to your car or home stereo. This has a low latency encoder that will ensure a smooth and stable Bluetooth audio streaming experience but does not have hands free calling and no TF card slot. Included is a USB-C to USB-C 1ft. cable and a 3.5 to 3.5 1ft. audio cable. Included in the box are the wireless audio transmitter/receiver, 1 Ft. USB-C to USB-C charging cable, and 1 ft. 3.5 mm audio cable. This will use Bluetooth from your phone and transmit FM to the car or home stereo. You can also send analog audio to 3.5mm headphones or other analog AUX input including your TV or other devices and transmit Bluetooth to headphones or speakers. This does not have hands free calling and no TF card slot.