Car FM Transmitter LCD Bluetooth 5.0 and Charger 12-24V USB + TypeC RGB (SKU: BC42)
Does your car radio lack modern features such as Bluetooth connectivity or a USB port? You don't need to buy an expensive new car radio. With the premium BC42 car FM transmitter, you can instantly transform your existing audio system into a modern multimedia center. This innovative car FM transmitter combines advanced Bluetooth 5.0 technology, ultra-fast QC 3.0 charging, colorful RGB lighting and hands-free calling in one compact device.
It is designed for all 12V or 24V vehicles (cars, vans, trucks), which means you simply plug it into the cigarette lighter socket and you are ready for a safer, more fun and connected drive.
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Why choose the BC42 car FM transmitter?
The main advantage of this FM transmitter is its exceptional versatility. It is not just an ordinary music adapter, but a complete solution for your vehicle that provides entertainment, communication and power for your smart devices at the same time.
Wireless freedom with Bluetooth 5.0
The latest Bluetooth 5.0 standard ensures an extremely stable connection without interruptions, faster data transfer and crystal clear sound. Once you pair your smartphone with the transmitter, it will connect automatically every time you get into the vehicle. Your favorite music from platforms such as YouTube, Spotify or Tidal will echo directly from the car speakers.
Fast charging QC 3.0 and Type-C connector
Do you often run out of battery on your phone or navigation device while you're on the road? With the BC42, these worries are a thing of the past. It's equipped with a modern charging system that includes a Quick Charge 3.0 USB port and an additional Type-C port. You'll charge your devices significantly faster than with conventional car chargers, and you can charge multiple devices at the same time without affecting the quality of your music playback.
Safe hands-free calling
Road safety should always come first. The car FM transmitter has a built-in, highly sensitive microphone that ensures clear and distinct phone conversations. When you receive an incoming call, the device automatically switches from music playback to phone call mode. With a single press of the multi-function button, you can answer or end the call without having to take your eyes off the road or let go of the steering wheel.
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Key product features and benefits

Multifunctional design: Allows you to play music, quickly charge devices, and safely make hands-free calls while driving.
QC 3.0 + Type-C Fast Charging: Extremely fast charging of your smart devices with a total power of up to 23W.
Multiple playback options: You can play music wirelessly via Bluetooth 5.0, from a USB flash drive, or via a micro SD card (up to 32 GB).
Customizable RGB LED lighting: Create a pleasant and unique atmosphere in the vehicle cabin with a choice of attractive color shades.
Large and clear LCD screen: Dimensions 34×43.7×2.5 mm allow you to easily monitor frequency, volume and settings at any time.
Adjustable device head: Adjust the screen angle for optimal viewing and smooth operation while driving.
7 built-in music modes: Customize the sound to your musical taste with Natural, Rock, Pop, Classic, Soft, Jazz and DBB (Deep Bass Boost) modes.
Easy one-button operation: Answer calls, adjust volume, and change frequencies with a single rotary knob.

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Technical specifications


Power supply: DC 12V or 24V (suitable for cars and trucks)
Power consumption: 1W
Wireless connection: Bluetooth 5.0
Frequency range: 87.5 – 108.0 MHz
Frequency stability: +- 10ppm
USB charger output voltage: QC3.0 + 5V/1A (total 23W)
Ports: USB 5V/1A (for playback/charging) + USB QC3.0 + Type-C
Maximum micro SD card capacity: 32 GB
Maximum USB drive capacity: 32 GB
Supported playback formats: MP3, WMA, APE, FLAC, WAV
LED screen dimensions: 34 × 43.7 × 2.5 mm

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Easy installation in three steps

Insert the BC42 FM transmitter into your car's cigarette lighter socket (12V or 24V).
Find a free frequency on your car radio (where there is no radio signal) and set the same frequency on the transmitter's LCD screen.
Connect your phone to the transmitter via Bluetooth (or insert a USB stick / Micro SD card) and start enjoying crystal clear sound.

If you insert a Micro SD card or USB stick with music loaded on it, the device will automatically recognize the media and immediately switch to the appropriate playback mode.
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Frequently Asked Questions (FAQ)
How do I set the optimal frequency for the best sound quality?
For the best noise-free sound, we recommend that you find a frequency on your car radio that is completely empty (where you only hear static and no active radio station). Then set the same frequency on your BC42 FM transmitter. This will ensure smooth sound transmission without interference from other radio transmitters.
Can I charge my phone and listen to music from a USB stick at the same time?
Yes, of course! The BC42 transmitter is equipped with multiple ports. One USB port is designed to play music from a USB stick (up to 32 GB), while the other ports (QC 3.0 and Type-C) are designed to charge your devices extremely quickly. Charging will not affect the quality or playback of your music.
Is the device also suitable for trucks (24V)?
Yes, the car FM transmitter supports a wide range of input voltage from 12V to 24V. This means that it works completely safely and stably in both passenger cars and larger vans, campers and trucks.


Responsible persons:
DEXXER - i-Want sp. z o. o., Magazynowa 10, 62-030 Luboń, Poland, hurt@i-want.pl +48 500528972
Distributor for Slovenia: Haloorodje.si, Online Sales, Rok Groznik sp, Podturn 42, 8350 Dolenjske Toplice, info@haloorodje.si, +38669731944, Slovenia
Product origin: China

Instructions for using the product:
• First, choose a suitable location to mount the transmitter in your car. We recommend mounting it on the dashboard or windshield so that the display is clearly visible and within reach.
• Clean the surface where you intend to attach the suction cup to ensure a firm and stable installation.
• Remove the protective film from the suction cup and attach it to the selected location. Make sure that the suction cup is firmly attached.
• Connect the transmitter's power cable to the cigarette lighter socket in your car.
• Turn on your car radio and tune to the frequency on the transmitter that is available on the radio. Choose a frequency that is not busy with stations to ensure the best sound quality.
• Connect your smartphone via Bluetooth to the FM transmitter. Follow the instructions on the transmitter screen to complete the connection process.
• Once the connection is established, you can start playing music through your car speakers. Adjust the volume on the transmitter or radio to achieve the desired sound level.
• For hands-free calling, simply answer the call through the transmitter. The transmitter's microphone will pick up the sound while you can speak through the car speakers.
• To charge your devices, simply plug the USB cable into one of the Quick Charge 3.0 USB ports. These ports provide fast charging, so your devices will be charged quickly.
• After use, turn off the transmitter and store it safely.

Useful tips for work:
• Before use, check that the transmitter is properly installed and connected to the smartphone via Bluetooth.
• For the best sound quality, select a frequency that is not occupied by radio stations.
• Adjust the volume on the transmitter or radio to achieve the desired sound level.
• For better hands-free calling quality, make sure the transmitter microphone is pointed towards you.
• Use Quick Charge 3.0 USB ports to charge your devices quickly.
• Regularly check that the transmitter is properly connected and operating without problems.
• Before removing the transmitter from the car, turn off the power and store it safely.
• Follow traffic regulations and concentrate on driving, even when using the transmitter.

Warnings:
⚠️ Suitable for vehicles with a voltage of 12-24 V.
⚠️ Do not operate the device in a way that could distract you while driving.
⚠️ Do not expose to water, moisture or high temperatures.
⚠️ Do not use a damaged device or cable.
⚠️ Unplug the transmitter from the outlet before cleaning.
⚠️ Keep out of reach of children.

Same summary

The LCD Bluetooth 5.0 Car FM Transmitter and 12-24V USB + Type-C RGB Charger is intended for users who want to listen to music wirelessly in the car or make calls via the car radio. It is mainly useful in vehicles without a built-in Bluetooth connection, as it allows for quick connection and use of the existing car audio system. Due to the FM transmitter, it is not suitable for those looking for a solution for hands-free calling at home or in the office, or who want the highest sound quality - sound transmission via FM frequency can in certain cases bring some noise. One of the outstanding advantages is the ability to charge various devices via USB and USB Type-C interface.

Recommendation source: Enaa guides and team experiences.

User view

This device is the most common choice for vehicle owners without modern multimedia interfaces who want to easily connect a smartphone and play calls or music through the car radio. With Bluetooth connectivity and an FM transmitter, you can switch between navigation, hands-free calls and music playback without having to reach for your phone or replace your existing car equipment.

Users appreciate the practicality and reliability of Dexxer products, as they offer simple solutions to the challenges of modern connectivity in vehicles of different generations.

Why buy at Enaa

When shopping at Enaa, you can rest assured that all products are carefully selected and reviewed by our quality team, and the online experience allows you to easily compare hands-free calling solutions - all in one place.

Answers to frequently asked questions

Does the FM transmitter work in all cars?

The FM transmitter generally works in all cars with a working radio, but the connection quality may vary slightly depending on the strength of the radio signal and surrounding interference.

What do I need for a Bluetooth connection to work?

To use the Bluetooth function, you need a phone or other device with a built-in Bluetooth module. Pairing is usually quick and requires no additional settings.

Can I charge multiple devices at the same time while using the transmitter?

Yes, the transmitter allows you to charge multiple devices simultaneously via USB and USB Type-C ports, which is useful on longer trips or for multiple users in a vehicle.

The sound quality is not always perfect – why?

Audio transmission via an FM transmitter depends on free frequencies and may occasionally experience noise or interference, especially in urban areas with multiple radio stations.

Does it support hands-free calling while driving?

Yes, the device supports hands-free calling, which allows for safer communication while driving, without directly controlling the phone.

Description updated: April 2026