"You're on air!" Comparative test of FM transmitters

What is an FM transmitter?

An FM transmitter is a device for transmitting an audio signal to a car's speaker system. It decodes the incoming stream (for example, in mp3 format) and converts it into a radio wave that can be picked up by the radio. You could say that you get a small personal radio station to play the tracks you want to listen to.

It works like this: an external medium is connected to the transmitter, and the device itself is connected to the on-board power supply of the machine. After this, the same broadcast frequency is set on the transmitter and the radio tape recorder - and you can listen to any music recorded on an external media on the radio tape recorder, and adjust the playback parameters using the transmitter.

What is the advantage of FM transmitters over players?

The main advantage of transmitters is that they are cheaper than players. If you got a car with an old radio, you will either have to be satisfied with the music that is recorded on CDs and the radio, or buy additional equipment. This is where the choice arises: take a new player or a transmitter that expands the capabilities of the radio.

The transmitter will cost much less than a high-quality player, and after purchasing it you will have all the same capabilities and choose the music yourself. Of course, transmitters also have disadvantages. The main one is that the sound quality in budget models may not be very good. In large cities, it is difficult to find a completely clear channel that does not have radio noise; in addition, the signal can sometimes disappear while moving, especially when the car is in the lowlands. But these shortcomings are not so critical, especially if you choose a high-quality model in which they are minimized.

What is an FM transmitter and how does it work?

An FM transmitter is a compact electronic device that in most cases is powered from a car's cigarette lighter. Essentially, it is a digital audio player that:

• plays sound files from USB flash cards, SD or microSD;
• transmits the played sound via radio waves to other devices.

The operating principle of the device is as follows:

• the transmitter opens the audio file;
• sound is transmitted via radio;
• it is received by the car radio using the built-in radio, and then played on the speakers of the car's audio system.

Thus, using the device, you can listen to music recorded on a flash card even from a radio that does not have USB, SD or microSD connectors. After all, for this it is enough that the autoplayer has a built-in receiver.

FM transmitter allows you to listen via FM radio to files stored on a memory card

The main disadvantage of the device is the possible occurrence of interference during music playback. This is because sound is transmitted using radio waves rather than wires. However, interference appears extremely rarely, because the gadget connected to the cigarette lighter is very close to the car radio antenna, so the radio signal travels a minimal path to it.

Today there are a huge number of models of FM transmitters in a wide range of price categories. Some of them are very simple devices that do not even have a monochrome screen - only 3-4 buttons are used for control. Others are full media players with a color LCD display.

What parameters to pay attention to when choosing

When choosing a device, you need to focus on a number of the most important parameters. This is the type of playback, connection and power features of the device, as well as what additional functions it can please the owner.

Playback type

• Bluetooth – when using this data transfer method, a wired connection is not required. Often in this way the transmitter device is connected to a phone or laptop, after which music is played from them. You can also organize a speakerphone using a device with a Bluetooth module.
• Flash – budget transmitters may not have Bluetooth, in which case a direct connection of a flash drive with audio files is required.

Supply voltage

As a rule, transmitters require a voltage of 12 V to operate. This allows them to be connected to a car's cigarette lighter. They can often operate at 24 V.

Connection features

The cigarette lighter may have its own characteristics depending on the car model. This primarily applies to cars equipped with old radios, because they themselves are already quite many years old. Therefore, it is worth checking in advance whether the transmitter is compatible with the cigarette lighter connector.

If everything is in order with this, you will need to adjust the frequency. Many transmitters have an auto-tune button. But it is not always enough: the fact is that many frequencies are already occupied by radio stations or are partially interrupted by them, which is why the music transmitted by the transmitter does not sound ideal. To avoid this, you need to select a completely free frequency. And while in rural areas this is usually not difficult to do, in a big city there may not be so many of them. Therefore, the frequency range is another significant parameter of the transmitter.

Additional functions

It may also be useful to have additional functions, such as the ability to transmit a signal from the phone to the radio for a hands-free conversation, or use the transmitter to charge other devices - after all, there are often not enough connectors in the car. And it will be more convenient to control the device if you have a remote control.

Which FM transmitter is better to buy?

The FM transmitter has a flash drive onto which audio files are recorded. The device reads them and converts digital sound into electrical vibrations. The device then begins to emit radio waves containing audio signals. The car radio receives and converts them, causing the drive files to be played.

To successfully play modulator files through a radio receiver, both devices must be tuned to the same frequency, not occupied by over-the-air broadcasting.

When choosing an FM transmitter, you should pay attention to several important characteristics.

These include:

• audio file playback type,
• features of connecting and powering the device,
• additional functionality.

The type of playback depends on the wireless connectivity of the device. If Bluetooth is available, the modulator connects to the drive remotely. If this function is not supported, then data transfer is carried out using a USB cable or flash card.

The power source for the device can be the on-board electrical network, replaceable batteries or a built-in battery. When connecting to the cigarette lighter, the supported voltage should be taken into account. For most models, this is 12 V, but heavy duty diesel vehicles usually transmit 24 V. To avoid damaging the transmitter, it is not recommended to connect a 12 V device to such a network.

Other important parameters of the device include the width of the supported frequency range. In a large city, it may be difficult to find an unoccupied channel, without which the modulator would not be able to operate. Therefore, this indicator is especially relevant for residents of megacities.

For comfortable use of the device, we recommend paying attention to the number of USB connectors, the presence of a remote control and support for the hands-free function.

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The best FM transmitters for cars with a Bluetooth module

AVS F-901

The device has a slot for an SD card, power from a cigarette lighter socket, and a standard frequency range. Provides high quality sound - you won't notice any drop in sound due to the use of a transmitter. The signal can be transmitted up to a maximum of 10 meters. F-901 is equipped with a built-in display and has a remote control - this makes operating the device comfortable. For its price (from 550 to 700 rubles), the model provides all the required functions at a good level, corresponding to some more expensive ones.

Price: ₽ 542

Neoline Wave FM

This model has a Bluetooth module, a display, and a built-in microphone. Thanks to the latter, it can be used as a headset for a smartphone, freeing up your hands during a trip - the call will be transferred to the radio. Has a slot for a MicroSD card with a capacity of up to 32 gigabytes, and a remote control. The device costs from 1,700 to 2,000 rubles, provides very good quality sound, and the speakerphone can be really loud - unlike many budget models. Easy to set up and connect, compact. Among the disadvantages, interference sometimes occurs in the city, forcing you to look for a new frequency.

Price: ₽ 1,760

Car FM transmitters with high-quality sound

Devices purchased to play music must provide high-quality sound. Extraneous radio signals often create interference, so not all models are pleased with the level of melodies played.

Promate FM 10+

Modulators are capable of broadcasting audio files from various external media: smartphones, tablets, MP3 players, memory cards. Using a compact device, you can listen to music through the stereo system and charge your mobile phone.

A flexible bracket is used as fastening. The device is controlled from two remote controls. One of them has a minimal set of buttons and is installed on the steering wheel. This makes it easier for the driver to change channels.

The second is a standard remote control. 3 audio formats are supported: WMA, MP3, WAV.

Advantages:

• variety of playback modes;
• equalizer with basic music styles: classical, rock, jazz and others;
• 2 control panels;
• Easy adjustment of screen angle.

Flaws:

• There is no power off button on the case.

Price 1250 rubles.

Mystery MFM-25CU

The Mystery brand has been producing car acoustics and electronics since 1995. The company's products belong to the budget segment. The device is positioned as an MP3 player with transmitter function.

The case has a built-in USB port and a slot for installing memory cards. A distinctive feature of the model is the high sound quality of music.

The signal is transmitted through one of the 200 FM frequency channels. Supports MMC and CD memory card formats, WMA and MP3 playback.

Advantages:

• built-in AUX connector for connecting headphones and any type of audio devices;
• presence of an equalizer;
• Convenient use thanks to the hinged design.

Flaws:

• uninformative LCD screen.

The cost of the modulator is 1300-1450 rubles.

The best FM transmitters for cars with a display

Kensington Deluxe Liquid FM 33424EU

Allows you to transfer recordings from an iPod to the radio; it has a stylish and laconic design. The name of the song being played and the name of the artist are displayed directly on the screen of the car's stereo system. The device is distinguished by its high sound quality and reliable assembly, so it will last a long time. Its only serious drawback is the price from 2,500 to 3,000 rubles, because for that amount you can buy a new stereo system for your car.

Price: ₽ 2,480

Neoline Bliss FM

If you need an inexpensive transmitter with a full screen, then you should pay attention to this model - it costs about 800-900 rubles and does a good job of transmitting a signal to an audio system. The device is very compact; in addition to standard connectors, it has a 3.5 mm AUX input. Equipped with a convenient remote control. The noise level is low, and overall it does the job well for its price.

Price: ₽ 815

Voting for the best FM transmitter with Bluetooth

Which Bluetooth FM transmitter would you choose or recommend?

ONOFF 2.1A

25.00 % ( 14 )

Ritmix FMT-A880

5.36 % ( 3 )

ANLUD

14.29 % ( 8 )

Supra SFM-30U

1.79 % ( 1 )

Telefunken TF-FMT20BT

16.07 % ( 9 )

Telefunken FMT19BT

14.29 % ( 8 )

BASEUS T-Typed S-09

3.57 % ( 2 )

Defender RT-Edge BT-HF

12.50 % ( 7 )

Ritmix FMT-A745

1.79 % ( 1 )

The best budget FM transmitters for cars

Torso FM 2757336

A very simple and inexpensive device (costs about 300-350 rubles) that provides all the necessary functions. There is support for the two most used formats - MP3 and WMA, two USB ports and a slot for microSD - you can record music directly to a memory card and listen from it. Remote control included. In general, it is worth noting that the Torso transmitter combines low price with full functionality.

Price: RUB 319

Neoline Ellipse FM

This transmitter supports only MP3, is equipped with a convenient LCD display, and the settings and the last played song are stored in its memory. It costs a little more than the previous one - about 500 rubles.

It stands out for its interesting design and high-quality assembly for this price segment: no wobbly buttons, the case will not come loose after just a few months of use, as often happens with other transmitters at this price. The device is also characterized by a clear sound, it does not even emit a quiet hiss - and this drawback is also characteristic of many cheap transmitters. There are two disadvantages: the display shows only the track number, but not its name; The remote control only works at a very short distance.

Price: ₽ 461

The most stylish car FM transmitters

The appearance of electronic devices is not a decisive selection criterion, but using a stylish FM transmitter is more pleasant than using a nondescript product.

DEXP DFM-15

The Chinese brand DEXP offers a multifunctional device with an elegant body design. The transmitter is rectangular in shape with rounded edges. The high quality of materials and workmanship is immediately noticeable.

The mounting system has been thought out; a flexible bracket allows you to rotate the screen at a convenient angle. The body is divided into two parts, one is occupied by the screen, the second is reserved for control buttons. On the sides there are connectors: AUX IN and USB, MP3, WMA formats are supported.

Advantages:

• built-in Bluetooth for data transfer and answering calls;
• attractive design;
• decent sound;
• affordable price.

Flaws:

• The Bluetooth module only works in headset mode.

The cost of the modulator is about 1000 rubles.

Comparison table of the best FM transmitters

Best FM Transmitter

Xiaomi Roidmi 3S

The model has an unusually compact size. At the same time, the gadget has a whole list of functions that can satisfy a not too picky music lover. Powered by the machine's network. Operating voltage 12 and 24 V. There is also a hands-free function. The transmitter can also serve as a charger for two mobile gadgets at once. The USB port is compatible with smartphones running Android or iOS. The big advantage of this version is its versatility. It is compatible with almost all types of cigarette lighters.

Advantages:

• charging gadgets;
• hands-free function;
• reliable holders in the cigarette lighter;
• fast charging;
• compact dimensions;
• modern minimalistic design;
• versatility (compatible with all cigarette lighters).

Minuses:

• lack of memory card support;
• no microphone;
• high price.

Defender RT-Multy BT/HF

An excellent choice for car enthusiasts who are categorically not satisfied with the functionality of the standard radio. Using a transmitter, you can significantly expand the range of audio information sources. To listen to tunes, you can use microSD memory cards and flash drives. The modulator supports the most popular formats: WMA and MP3. There is also a Bluetooth interface that allows you to establish connections with mobile gadgets. In addition, Bluetooth connectivity allows you to talk on your mobile phone hands-free.

It is possible to connect the FM transmitter to a 12- or 24-volt vehicle on-board network. The connection is made through the cigarette lighter. The operating range of the device is 5.0 m. The operating frequency range is within the range of 87.6-107.9 MHz. Thanks to its small size and convenient design, it is very easy to install. The maximum capacity of the memory card is 32 GB.

Ritmix FMT-A745

The device, which combines extreme simplicity of design with high efficiency, occupies one of the best places in our TOP ten. This is the optimal solution for car enthusiasts, regardless of the type of vehicle they drive. An on-board network with a voltage of 12 or 24 V can be used as a power source. The device can be used with a microSD memory card or flash drive. Line input allows you to connect with audio equipment. The Bluetooth interface allows you to play recordings from tablets and phones.

The transmitter is equipped with a USB port, allowing you to use it as a battery charger for portable equipment. The output current is 1 A. The built-in microphone allows you to use the device as a headset. The radio signal transmission radius is 5.0 m. The included remote control is convenient for rear seat passengers. The device is equipped with an LED display.

Advantages:

• low price;
• the ability to play recordings from memory cards or flash drives;
• convenient remote control;
• work in on-board vehicle networks 12 or 24 V.

Minus: there are no options for creating playlists.

NEOLINE Wave FM

An FM transmitter helps to reproduce high-quality music in the car, even if it is equipped with a conventional radio or an outdated cassette player. The device works equally well with voltages of 12 and 24 V, which will undoubtedly be appreciated by both professionals and car enthusiasts. Thanks to the Bluetooth adapter, the modulator plays recordings not only from memory cards and flash drives, but also retrieves them from the memory of mobile gadgets. This device is a full-fledged alternative to a car receiver. The music broadcast range is up to 10 m. You can control the device using the keys on the body or from the control panel.

Advantages:

• 2 USB connectors (1 and 2.4 A);
• support for drives with a maximum capacity of 32 GB;
• excellent sound quality.

Minus: poor audibility during calls.

Nonda ZUS HD Music

A compact Bluetooth adapter with a modern, stylish design that will help you play tunes stored on your smartphone on your car audio system. The gadget features universal connectivity. Signal transmission is carried out using an FM tuner or linear AUX input. The signal from the mobile gadget to the adapter is transmitted via a Bluetooth channel. Support for Qualcomm cVc Noise and Qualcomm aptX codecs ensures excellent sound quality while minimizing extraneous sounds and interference. There is a microphone. The adapter can be used for telephone conversations in Hands-Free mode. The model is equipped with 3 control buttons and an OLED display.

X5 Wireless Car Kit

A small device that not only allows you to listen to music comfortably, but also supports hands-free communication. Communication with the phone is carried out via Bluetooth. The gadget runs on its own battery, the charge of which lasts for 1000 hours in standby mode. When used in talk mode, the energy reserve lasts for 20 hours. The duration of a full charge is 3 hours. The device can be mounted on the car dashboard or on the sun visor above the driver’s head. It is possible to attach it to a special magnet built into the case. Transmission distance is 10 m. The instructions are in English and Chinese.

Baseus Locomotive Bluetooth

A universal device that can be used on cars of various categories. Using the modulator, you can listen to the latest melodies on the standard radio, receive mobile calls, and also recharge gadgets. The algorithm of actions is simple: tune in any FM wave and synchronize your phone with the modulator using Bluetooth. Mobile devices are charged via 2 USB ports. The power of Baseus Locomotive Bluetooth is enough to fully charge your phone in a short time. Transmission frequency range 87.5 - 108 MHz. Supported formats WAV / FLAC / MP3 / APE / VMA. The modulator supports flash drives with a capacity of up to 32 GB.

AVS F-901

FM transmitter with simple and intuitive controls. It is enough to insert a memory card or flash drive with saved audio recordings into it and connect it to the car’s cigarette lighter. Now all that remains is to synchronize the transmitter with the car receiver and you can enjoy your favorite music. This model is a good alternative to the usual car radio. Unfortunately, expensive equipment in cars is often stolen. The cost of the AVS F-901 modulator is low, and the dimensions are very compact. When leaving the car, you can simply take the simple device with you. The LCD display, which is equipped with the AVS F-901 version, allows you to quickly read information. The device supports files in MP3, WMA format. Control is possible with PU or buttons on the body.

Eplutus FB-02

FM modulator, which makes it possible to broadcast audio recordings from a memory card to a car stereo system. The device also supports speakerphone, provided that the phone is equipped with a Bluetooth interface. After the conversation ends, the track will automatically play. Using the transmitter, you can listen to melodies, conduct telephone conversations and charge mobile gadgets without being distracted from driving the car. Eplutus FB-02 comes with a remote control.

Pros:

• convenience and ease of use;
• good build quality;
• low price;
• the ability to answer phone calls without being distracted from driving.

Minus: use only from a 24 V network.

ACV FMT-114

A portable translator that allows you to solve the problem of the lack of a USB interface on the radio. If you buy ACV FMT-114, playing audio information from flash cards ceases to be a problem. The device is a mini-gadget that works from the car's cigarette lighter. It converts the audio signal and broadcasts it at the FM frequency. The gadget operates on 206 channels and stably transmits signals over a 5-meter distance.

The transmitter has an LCD display on which you can read the following information:

• file format and name;
• media type;
• broadcast frequency.

Thanks to the backlight, recordings are clearly visible at any time of the day. Frequency range from 87.5 to 180 MHz, operating voltage 12 V.

FM transmitter for a car, which company is better to choose?

The majority of the electronics market is occupied by products from Chinese brands, but equipment from domestic companies is no less popular. High-quality devices are produced by the following brands:

• JaJaBor Bluetooth is a Chinese brand offering automotive electronics devices. The company produces more than 6 thousand various items at an affordable price.
• Orbita is a leading electronics company on the Russian market. The catalog presents a line of car accessories.
• AVS F is an electrical engineering company known in the Southern Federal District. Over the 20 years of its existence, the brand’s assortment has included more than a million items.
• Ritmix is ​​a company from Korea that began its activities with the release of an MP 3 player. The brand offers budget devices without sacrificing quality indicators.
• Defender is a company of international importance. The initial activity was the production of protective screens for CRT monitors.

The best MP3 player with FM modulator

According to many buyers, the best mp3 player with FM transmitter in terms of price and quality ratio is the Rolsen RFA-100.

The average cost of a Rolsen player with a remote control included is 500 rubles. The device features an extravagant design with a button divider in the form of the Honda emblem. The product is built conscientiously and takes care of the user's needs: thanks to the backlight and thoughtful design of the buttons, it is convenient to use in the dark. According to the manufacturer, the player reads flash drives up to 16 GB.

The ergonomic device is equipped with a remote control and is capable of working with catalogs.