---
product_id: 637528625
title: "Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging"
brand: "nulaxy"
price: "$40.21"
currency: USD
in_stock: true
reviews_count: 13
category: "Nulaxy"
url: https://www.desertcart.us/products/637528625-nulaxy-54w-bluetooth-5-3-car-adapter-fm-transmitter-4
store_origin: US
region: United States of America
---

# 54W ultra-fast charging Bluetooth 5.3 crystal-clear audio 4-port simultaneous device charging Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging

**Brand:** nulaxy
**Price:** $40.21
**Availability:** ✅ In Stock

## Summary

> 🚗⚡ Charge, Connect & Cruise in Style — The Ultimate Bluetooth Car Companion!

## Quick Answers

- **What is this?** Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging by nulaxy
- **How much does it cost?** $40.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/637528625-nulaxy-54w-bluetooth-5-3-car-adapter-fm-transmitter-4)

## Best For

- nulaxy enthusiasts

## Why This Product

- Trusted nulaxy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bass That Moves You:** One-touch deep bass boost transforms your car into a concert hall with rich, immersive sound.
- • **Next-Gen Bluetooth 5.3:** Experience seamless, ultra-stable connections and pristine sound quality for calls and music.
- • **Multi-Device Charging Hub:** Four USB ports let you power up your phone, tablet, and more—all at once, no compromises.
- • **Drive Safer, Stay Connected:** Voice commands and tactile controls keep your hands on the wheel and eyes on the road.
- • **Power Up at Lightning Speed:** 54W total output with PD36W & QC18W ports crushes battery anxiety for all your devices.

## Overview

The Nulaxy 54W Bluetooth 5.3 Car Adapter is a cutting-edge FM transmitter and fast charger featuring four USB ports with PD36W and QC18W support. It delivers crystal-clear audio with Bluetooth 5.3, enhanced bass, and colorful LED lighting for night driving. Designed for safety and convenience, it offers voice control, precise touch buttons, and broad vehicle compatibility (12V-24V). Perfect for multitasking millennials who demand seamless connectivity and power on the go.

## Description

Buy Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging | Wireless FM Radio Music Player with Deep Bass, 5 Colors LED Backlit, Hands-Free Calling, PD&QC Car Charger Support USB Drive: FM Transmitters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: What a great little item and it's really helped make my car experience a lot less boring - I got this item back in August of 2025 and I had something similar many years ago when I was driving a delivery van overnight and couldn't find anything on the radio so I wanted to stream things from my phone. This thing pretty much is flawless You plug it in the cigarette lighter and it auto picked a station which I guess it already has preset that knows that nothing is usually on that frequency and then I turn my car to the right auto frequency and play my music streaming off my phone couldn't be simpler. I use it with my unlimited data which I actually get a broil affordable price on so I stream the serious satellite radio using the app and I haven't really needed to listen to the car radio for many many months. I can get local stations even a.m. and FM and then of course with serious satellite radio app I get hundreds of other stations. It's the perfect alternative when you're tired of listening to the commercials all the time and you're tired of stations that go in and out especially a.m.. The things work flawless I leave it plugged in in the car all the time and never have a problem connects automatically when I turn on my Bluetooth. The sound quality I assume is great I don't know sounds just like the regular radio domain I don't have a high definition car stereo anyway It's just the factory model and an old Subaru I drive but everything sounds crystal clear to me I'm sure it could be better if there was some high end equipment in the car but anyway I mean literally for the price of two Starbucks coffees you get this product that can do so much and never have to worry about plugging cables in or any of that stuff again. Overall I highly recommend it I'm giving it five stars.
Review: NOTHING BUT GOOD THINGS TO SAY - This Nulaxy Bluetooth unit actually works really well. I was going to buy Bluetooth speakers to clip onto the visor of my 1997 Land Cruiser, and accidentally ran across these little FM xmitter products. There are many brands and models, but this one had a couple of nice features and seemed to come recommended, so I chose it. I tune it to an FM station that has the least static and no signal at all, and I pre-program that frequency to a pushbutton on my radio. The unit connects via Bluetooth almost instantly when the car is started (and a voice notifies me that it's connected), and then on a call, telephone conversation audio comes out clear and smooth. Turn it to its max volume and it may not shake the fenders off your car but it's not bad at all...and that's on a older truck, too. The only music audio I've tried so far is my "Favorites" playlist from a YouTube app. It plays them very nicely. And I can pause them with the multifunction button (and occasionally fast-forward past the ads in between each "track" by turning the multifunction button briefly clockwise...although it sometimes also skips to the entire next track). Fidelity is about as enjoyable as if a radio station was broadcasting the songs. Initially some features weren't working, until I realized that my dashboard cigar lighter is in a recessed dashboard area that's too narrow and the dashboard's plastic was holding the Bluetooth device's "light" button down. This made a number of features not work properly. So I mounted the Nulaxy device on a small extender "stalk" and it works flawlessly. Navigation audio goes silent during a phone call, but that's an iPhone thing…and it comes back automatically and quite instantly when the call terminates. Probably again per the iPhone's own behavior, navigation audio takes precedence over music audio loudness-wise, but the music audio continues playing softly in the background and then comes back to the foreground each time the navigation app stops talking. So I can listen to music while navigating, and it works fine. My strategy if I want to listen to the radio is to listen to whatever station I want...baseball game on AM or whatever...and if a phone call comes in, I just switch the radio quickly to FM and hit the radio's pre-programmed frequency button, and then I answer the call on the Nulaxy device. If I want to initiate a call, I turn the radio to the FM frequency first and then initiate the call on the phone (by typing or by using Siri commands), then converse via the Bluetooth device. The "dial last number called" quick-double-button-press works too...but only seems to work for the last call that I myself initiated, not the last call that called me and spoke with me. Not a big deal there, and that could be an Apple iPhone thing too, for all I know. I'm not sure if Siri commands work without touching the phone...but of course they still work on the phone itself. About the only small wrinkle, and it's just the nature of different signal source amplitudes and not the fault of this device, is that FM radio volume must sometimes be turned up a bit to compete with road noise...so in those cases I need to remember that I had turned the radio volume up before I switch back to the baseball game...or I may hear "Beanball!" or "Kill the umpire!" come out of the speakers really loud. (But since I'm yelling those things at the top of my lungs whenever I listen to a ball game anyway, it's hardly a big deal...) Overall this great little gizmo has it all over my original idea of putting speakers on the visor above my head -- so many limitations and complexities are simplified and improved with this approach compared to separate speakers (which would need to be manually turned on, and frequently recharged, and I'd still have to turn off or pause other audio to make them worthwhile at all). This device is a dirt cheap way of adding full-featured completely satisfying Bluetooth connectivity to my nearly-30-year-old Land Cruiser for a whopping $12.47 Black Friday sale price. Would I buy another? C'mon, man, who the heck needs two older Land Cruisers? : )

## Features

- 54W High Power Fast Charging, 4-Port Synchronous Charging: Nulaxy Bluetooth car adapter integrates PD36W and QC18W, offering a high-speed and efficient charging solution. Its innovative four-port design supports parallel charging of multiple devices, effortlessly overcoming battery anxiety and enhancing charging efficiency.
- Technological Leadership, Revolutionary Bluetooth 5.3: The fm transmitter Bluetooth uses the latest Bluetooth 5.3 technology, significantly improving connection speed and data transmission efficiency. Enhanced sound quality ensures rapid and stable connections, providing a clearer, smoother experience for both calls and music playback.
- Stunning Bass, Colorful Lighting Effects: One-touch activation of stunning bass effects reproduces the true texture of music, offering an unparalleled musical experience. The five-color lighting design provides accurate perception at night, ensuring easy and safe operation, making nighttime driving more relaxed.
- Voice Commands and Precise Touch Control: Our Bluetooth transmitter supports smart voice navigation from your phone for truly hands-free driving. Its unique raised button design provides precise, sightless control, ensuring safety and convenience while driving.
- Comprehensive Safety Assurance and Wide Compatibility: Bluetooth adapter for car provides all-around safety protection, including over-current, over-voltage, overheating, and short-circuit protection, ensuring the safety of you and your devices. Its wide compatibility supports 12V to 24V vehicle voltages, suitable for most cars. Nulaxy continues to innovate, offering industry-leading car Bluetooth adapter that ensure safety and compatibility.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D1XZJQG5 |
| Additional Features | 54W High Power Fast Charging, Built-In Microphone, Colorful Lighting Effects, Deep Bass, Hands-Free Calls |
| Audio Input | Bluetooth Devices & FM Radio |
| Audio Output Mode | Mono |
| Audio Output Type | FM Radio |
| Battery Type | Standard Rechargeable Battery |
| Best Sellers Rank | #1 in MP3 Player FM Transmitters |
| Brand | Nulaxy |
| Color | Pink |
| Compatibility Options | Most cars (12V to 24V) |
| Compatible Devices | most cars |
| Compatible with Vehicle Type | most cars |
| Connectivity Technology | Bluetooth |
| Connector Type Used on Cable | USB Type C |
| Control Method | Touch |
| Control Type | Voice Control |
| Controller Type | Voice Control, Touch Control |
| Customer Reviews | 4.4 out of 5 stars 9,934 Reviews |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Plastic |
| Hardware Interface | Bluetooth, Bluetooth 5 |
| Human Interface Input | Buttons |
| Installation Type | plug-and-play |
| Manufacturer | Nulaxy |
| Material | Acrylonitrile Butadiene Styrene (ABS) , Plastic |
| Model Name | BC91 |
| Number of Channels | 1 |
| Number of Ports | 4 |
| Power Source | Vehicle Electrical System |
| Special Feature | 54W High Power Fast Charging, Built-In Microphone, Colorful Lighting Effects, Deep Bass, Hands-Free Calls Special Feature 54W High Power Fast Charging, Built-In Microphone, Colorful Lighting Effects, Deep Bass, Hands-Free Calls See more |
| Supported Application | [Any] |
| Supported Media Type | MP3, WAV, WMA, AAC, FLAC |
| Supported Standards | Bluetooth 5.3 |
| Unit Count | 1 Count |
| Voltage | 12 volts_of_direct_current |
| Warranty Description | 1 year manufacturer |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** Nulaxy
- **Connectivity Technology:** Bluetooth
- **Material:** Acrylonitrile Butadiene Styrene (ABS), Plastic
- **Power Source:** Vehicle Electrical System

## Images

![Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging - Image 1](https://m.media-amazon.com/images/I/71BXIeK0wAL.jpg)
![Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging - Image 2](https://m.media-amazon.com/images/I/71Dc7seqPVL.jpg)
![Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging - Image 3](https://m.media-amazon.com/images/I/714sn5ACtAL.jpg)
![Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging - Image 4](https://m.media-amazon.com/images/I/81Ja3t4BE0L.jpg)
![Nulaxy 54W Bluetooth 5.3 Car Adapter, FM Transmitter 4-Port Fast Charging - Image 5](https://m.media-amazon.com/images/I/71pDP+TakBL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: What is the size of the plug-in connector, and which car models is it compatible with?**
A: Sizes: Diameter 24mm with spring clip, Depth 57mm This size fits most car models but is unsuitable for sockets in recessed areas like glove boxes. After use, hold the car’s socket with one hand and pull out the charger with the other to avoid damage.

**Q: How can I avoid or reduce noise?**
A: For best sound quality, set the car audio volume below 50% before connecting your phone. Then, connect to the FM frequency & Bluetooth. Adjust the phone & BC91 volume first. If it's still too low, adjust the car audio system to reach the ideal level.

**Q: How do I match & switch frequencies?**
A: Turn on car radio to blank FM frequency. Set the BC91 to the same frequency as the car radio. Long-press the BC91 rotate button until frequency flashes. Turn clockwise to increase, counter-clockwise to decrease.

**Q: The device isn't working/power isn't responding/display isn't showing/car audio isn't receiving sound/unable to play?**
A: 1) Ensure that the FM transmitter is on. 2) Verify the transmission frequency of the FM transmitter matches the frequency of the car's radio. 3) Unplug the BC91 and connect it again. 4) Confirm the files on the USB device are supported by the BC91.

**Q: How to pair the FM transmitter with your phone via Bluetooth?**
A: Plug BC91 into car cigarette lighter socket to power on. Enable your phone's Bluetooth is on. Then search for 'BC91 and select 'connect'. Once connected, you can start playing music, using navigation, or making hands-free calls.

## Customer Reviews

### ⭐⭐⭐⭐⭐ What a great little item and it's really helped make my car experience a lot less boring
*by W***. on June 27, 2026*

I got this item back in August of 2025 and I had something similar many years ago when I was driving a delivery van overnight and couldn't find anything on the radio so I wanted to stream things from my phone. This thing pretty much is flawless You plug it in the cigarette lighter and it auto picked a station which I guess it already has preset that knows that nothing is usually on that frequency and then I turn my car to the right auto frequency and play my music streaming off my phone couldn't be simpler. I use it with my unlimited data which I actually get a broil affordable price on so I stream the serious satellite radio using the app and I haven't really needed to listen to the car radio for many many months. I can get local stations even a.m. and FM and then of course with serious satellite radio app I get hundreds of other stations. It's the perfect alternative when you're tired of listening to the commercials all the time and you're tired of stations that go in and out especially a.m.. The things work flawless I leave it plugged in in the car all the time and never have a problem connects automatically when I turn on my Bluetooth. The sound quality I assume is great I don't know sounds just like the regular radio domain I don't have a high definition car stereo anyway It's just the factory model and an old Subaru I drive but everything sounds crystal clear to me I'm sure it could be better if there was some high end equipment in the car but anyway I mean literally for the price of two Starbucks coffees you get this product that can do so much and never have to worry about plugging cables in or any of that stuff again. Overall I highly recommend it I'm giving it five stars.

### ⭐⭐⭐⭐⭐ NOTHING BUT GOOD THINGS TO SAY
*by L***. on November 27, 2025*

This Nulaxy Bluetooth unit actually works really well. I was going to buy Bluetooth speakers to clip onto the visor of my 1997 Land Cruiser, and accidentally ran across these little FM xmitter products. There are many brands and models, but this one had a couple of nice features and seemed to come recommended, so I chose it. I tune it to an FM station that has the least static and no signal at all, and I pre-program that frequency to a pushbutton on my radio. The unit connects via Bluetooth almost instantly when the car is started (and a voice notifies me that it's connected), and then on a call, telephone conversation audio comes out clear and smooth. Turn it to its max volume and it may not shake the fenders off your car but it's not bad at all...and that's on a older truck, too. The only music audio I've tried so far is my "Favorites" playlist from a YouTube app. It plays them very nicely. And I can pause them with the multifunction button (and occasionally fast-forward past the ads in between each "track" by turning the multifunction button briefly clockwise...although it sometimes also skips to the entire next track). Fidelity is about as enjoyable as if a radio station was broadcasting the songs. Initially some features weren't working, until I realized that my dashboard cigar lighter is in a recessed dashboard area that's too narrow and the dashboard's plastic was holding the Bluetooth device's "light" button down. This made a number of features not work properly. So I mounted the Nulaxy device on a small extender "stalk" and it works flawlessly. Navigation audio goes silent during a phone call, but that's an iPhone thing…and it comes back automatically and quite instantly when the call terminates. Probably again per the iPhone's own behavior, navigation audio takes precedence over music audio loudness-wise, but the music audio continues playing softly in the background and then comes back to the foreground each time the navigation app stops talking. So I can listen to music while navigating, and it works fine. My strategy if I want to listen to the radio is to listen to whatever station I want...baseball game on AM or whatever...and if a phone call comes in, I just switch the radio quickly to FM and hit the radio's pre-programmed frequency button, and then I answer the call on the Nulaxy device. If I want to initiate a call, I turn the radio to the FM frequency first and then initiate the call on the phone (by typing or by using Siri commands), then converse via the Bluetooth device. The "dial last number called" quick-double-button-press works too...but only seems to work for the last call that I myself initiated, not the last call that called me and spoke with me. Not a big deal there, and that could be an Apple iPhone thing too, for all I know. I'm not sure if Siri commands work without touching the phone...but of course they still work on the phone itself. About the only small wrinkle, and it's just the nature of different signal source amplitudes and not the fault of this device, is that FM radio volume must sometimes be turned up a bit to compete with road noise...so in those cases I need to remember that I had turned the radio volume up before I switch back to the baseball game...or I may hear "Beanball!" or "Kill the umpire!" come out of the speakers really loud. (But since I'm yelling those things at the top of my lungs whenever I listen to a ball game anyway, it's hardly a big deal...) Overall this great little gizmo has it all over my original idea of putting speakers on the visor above my head -- so many limitations and complexities are simplified and improved with this approach compared to separate speakers (which would need to be manually turned on, and frequently recharged, and I'd still have to turn off or pause other audio to make them worthwhile at all). This device is a dirt cheap way of adding full-featured completely satisfying Bluetooth connectivity to my nearly-30-year-old Land Cruiser for a whopping $12.47 Black Friday sale price. Would I buy another? C'mon, man, who the heck needs two older Land Cruisers? : )

### ⭐⭐⭐⭐⭐ Exceeded my expectations. Couldn’t ask for better.
*by P***X on August 22, 2024*

Initially I was just searching for a decent plug-in car charger with at least 2 Power Delivery USB-C and 2 USB-A ports. Then I stumbled upon this product in the same price range. It had most of the charging port specs I wanted AND there was the added function of turning my car radio into a bluetooth speaker. I was a bit suspicious of the quality of these features based on the low $10 price tag, but I figured “oh what the heck, as long as it charges my phone, any other features are all up-side, regardless or quality.” Well, it turns out after receiving and briefly testing out the item, all of the advertised features work well and I couldn’t come up with any complaints about the quality. I’m not an audiophile, so I can’t really tell you about all the different sound characteristics, but I can definitely say that the sound was clear with no static. The FM signal was strong to create complete silence on the radio station you tell it to connect to (when it is connected but no sound is playing). The microphone built into this device transmitted my voice clearly to the person on the other end of a phone call, without me having to pay special attention to where I was directing my voice from a normal driving position in my truck with my power port down low front and center. I even tried it in a power port located inside an open armrest console slightly below where the driver’s elbow would be, and it still picked up my voice clearly. It’s nice that it allows you to choose whatever FM frequency you want for transmitting to your radio. The bluetooth connected to my phone easily. The colorful LED light ring around the device lets you choose the color or let it continuously slowly cycle through all the colors, but I found the best LED feature to be the fact that you can turn them the lights off. I also like that you can easily hold a button down to turn the entire unit off when you don’t want it to automatically connect to your phone and vehicle. This is also good for preserving my truck’s battery since my power port is the type that stays on even when my truck is off. Note that the charging ports DO still work when the rest of the unit is powered off. The bass boost option toggles on and off, but my truck has crappy speakers, so I couldn’t tell if this feature improved the sound or made it worse. There’s even a voltmeter built in that lets you see the voltage of your vehicle’s battery whenever you power this unit on. That will help me monitor how much drain is on my truck’s battery after long periods without running it. I haven’t yet had a chance to properly test the accuracy of the advertised charging port specs, but I’ll update this review if I find that the charging speed or wattage don’t seem as advertised. I’ll also update this review if the quality of the product degrades or if it stops working too soon. If I were being greedy, the only improvements to this product that I would have asked for would be an increase in Power Delivery charging wattage specs. And although the following is probably overkill, I like the idea an additional mechanical switch to turn off power to the entire device including the charging ports, absolutely ensuring zero phantom drain on the car battery. Such a feature does not seem to be popular on chargers anywhere though since their phantom drain when not in use is considered negligible enough. Overall I find this product to be GREAT and as FLAWLESS as you can get for $10. I plan to order one in a different color for another vehicle as soon as I submit this review.

## Frequently Bought Together

- Nulaxy 54W Bluetooth 5.3 Car Adapter with 4 Charging Ports [PD 36W & QC3.0 18W], Wireless Radio FM Transmitter with Deep Bass Player & 5 Colors LED Backlit, Hands-Free Calling - Pink
- SINGARO Car Cup Coaster, 4PCS Universal Non-Slip Cup Holders Embedded in Ornaments Coaster, Car Interior Accessories, Pink
- Amooca Universal Car Headrest Hooks, Car Organizer Hanger Storage Hooks for Bag Purse Cloth Grocery (Pink Set of 4)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/637528625-nulaxy-54w-bluetooth-5-3-car-adapter-fm-transmitter-4](https://www.desertcart.us/products/637528625-nulaxy-54w-bluetooth-5-3-car-adapter-fm-transmitter-4)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-10*