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Nulaxy vs Lencent: What Are The Key Differences Between The KM18 and T25 Transmitters? We Ask Chat GPT

These days there is a good bet that your car already comes with the ability to connect with your phone via bluetooth. That said not everyone has these kinds of smart cars and still need a little bit of digital assist in getting their phones to connect. That's where FM transmitters come into play. We have two choices on Amazon both under $20 that make for a good comparison. Let's see what Chat GPT thinks of these two products head to head. But first as usual let's see what we are talking about.

First we have the Nulaxy KM18 FM transmitter. Currently on Amazon for $15.99 and it has a 4.4 star score on over 129,000 ratings.

Nulaxy Wireless in-Car Bluetooth FM Transmitter Radio Adapter Car Kit W 1.44 Inch Display Supports TF/SD Card and USB Car Charger for All Smartphones Audio Players-KM18

Then we have the Lencent T25 transmitter. Currently on Amazon for $14.99 and it has a 4.5 star score on over 59,000 ratings.

LENCENT FM Transmitter, 2022 Upgraded Bluetooth FM Transmitter Wireless Radio Adapter Car Kit with Dual USB Charging Car Charger MP3 Player Support TF Card & USB Disk

Both products are pretty much in the same ball park as each other price and feedback wise. So let's kick it to Chat GPT to see what they got...

"The Nulaxy KM18 and the Lencent T25 are both popular FM transmitters that allow you to play music and take calls through your car's FM radio system. Here's a detailed comparison of the two:

Nulaxy KM18


  • Display: 1.44-inch LCD screen that shows the incoming call number, song playing, and car battery voltage.

  • Bluetooth Version: 4.2, providing a stable connection and efficient power usage.

  • Ports: One USB charging port with 2.1A output and a TF card slot for playing music directly from a memory card.

  • Audio: Supports MP3, WMA, and FLAC formats. Equipped with noise and wind suppressed by CVC technology to create full duplex sound quality.

  • Controls: Easy-to-use buttons for play/pause, skip tracks, and answer/hang up calls.

  • Compatibility: Compatible with most devices with Bluetooth capability.

  • Extras: Voice prompt function, flexible gooseneck for optimal positioning.

Lencent T25


  • Display: Smaller display that shows basic information such as the FM frequency and car battery voltage.

  • Bluetooth Version: 5.0, which offers faster and more stable connections, as well as lower power consumption.

  • Ports: Two USB ports, one with Quick Charge 3.0 (up to 18W) for fast charging and another with 5V/2.4A output. Includes a TF card slot and a USB flash drive port for playing music.

  • Audio: Supports MP3, WMA, WAV, and FLAC formats. Built with noise suppression (CVC) technology for clear audio.

  • Controls: Simple controls for answering/hanging up calls, adjusting volume, and skipping tracks.

  • Compatibility: Compatible with most Bluetooth-enabled devices.

  • Extras: Memory function that recalls the last paired device and the last played frequency, voice navigation for hands-free operation.


  • Bluetooth Version:

    • Nulaxy KM18: Bluetooth 4.2

    • Lencent T25: Bluetooth 5.0 (better for faster and more stable connections)

  • Charging Ports:

    • Nulaxy KM18: One USB port with 2.1A output

    • Lencent T25: Two USB ports, including one with Quick Charge 3.0 (better for fast charging multiple devices)

  • Display:

    • Nulaxy KM18: Larger 1.44-inch display

    • Lencent T25: Smaller display, but sufficient for basic information

  • Music Playback Options:

    • Nulaxy KM18: TF card slot, Bluetooth

    • Lencent T25: TF card slot, USB flash drive port, Bluetooth

  • Audio Formats Supported:

    • Nulaxy KM18: MP3, WMA, FLAC

    • Lencent T25: MP3, WMA, WAV, FLAC (slightly more versatile)

  • Additional Features:

    • Nulaxy KM18: Flexible gooseneck, voice prompt function

    • Lencent T25: Memory function, voice navigation


Both FM transmitters are excellent choices, but they cater to slightly different needs:

  • Nulaxy KM18 is ideal if you prefer a larger display and a flexible positioning option.

  • Lencent T25 is better suited for those who need faster charging capabilities, Bluetooth 5.0 for a more stable connection, and the ability to play music from a USB flash drive.

Your choice should depend on which features are most important to you and how you plan to use the transmitter."

Great breakdown. Just enough difference to make your choice matter, while not so different you may end up making a bad choice.

NOTE: All price and review info is based on the time of posting. The numbers may have changed since the creation of this article. Don't forget to always research everything yourself before you buy it, don't just take our word for it. All links to Amazon on this page are part of the Associates program which gives us commissions, thanks for your support!


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