---
product_id: 634334133
title: "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"
brand: "nulaxy"
price: "HK$259"
currency: HKD
in_stock: true
category: "Nulaxy"
url: https://www.desertcart.hk/products/634334133-nulaxy-54w-bluetooth-5-3-car-adapter-fm-transmitter-4
store_origin: HK
region: Hong Kong
---

# 54W ultra-fast charging 5-color LED backlit Bluetooth 5.3 seamless connect 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

**Brand:** nulaxy
**Price:** HK$259
**Availability:** ✅ In Stock

## Summary

> 🚗⚡ Charge, Connect & Cruise in Style — Your Car’s New Powerhouse!

## Quick Answers

- **What is this?** 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 by nulaxy
- **How much does it cost?** HK$259 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/634334133-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

- • **Nighttime Vibes & Safety:** Five-color LED backlighting not only looks sleek but enhances visibility and ease of use during late drives.
- • **Charge All Your Essentials:** Four USB ports let you power multiple devices simultaneously—never fight over the charger again.
- • **Crystal Clear Calls & Music:** Bluetooth 5.3 tech delivers stable, lag-free connections and rich deep bass for an immersive audio experience.
- • **Power Up at Lightning Speed:** 54W total output with PD 36W & QC 18W ports keeps all your devices charged without missing a beat.
- • **Drive Safer with Hands-Free Control:** Voice commands and tactile raised buttons ensure you stay connected and focused on the road.

## Overview

The Nulaxy BC91 is a cutting-edge Bluetooth 5.3 FM transmitter and car adapter featuring 54W fast charging across four USB ports (PD 36W & QC 18W). It offers deep bass audio, hands-free calling with built-in microphone, and vibrant 5-color LED backlighting for enhanced nighttime usability. Compatible with most 12V-24V vehicles, it ensures seamless wireless connectivity, superior sound quality, and comprehensive device safety protections, making it the ultimate upgrade for modern drivers seeking convenience and style.

## 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

## 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 | B0D1Y357LM |
| Additional Features | 54W High Power Fast Charging, Built-In Microphone, Colorful Lighting Effects, Deep Bass, Hands-Free Calls |
| AntennaDescription | FM Radio |
| Audio Output Mode | Stereo |
| Audio Output Type | Bluetooth, FM Radio |
| Best Sellers Rank | #1 in MP3 Player FM Transmitters |
| Brand | Nulaxy |
| Color | Blue |
| Compatibility Options | Car Stereo System, FM Radio, Bluetooth-enabled Devices |
| Compatible Devices | Car Stereo System |
| Connectivity Technology | Bluetooth |
| Connector Type Used on Cable | USB Type C |
| Control Method | Touch |
| Control Type | Touch Control |
| Controller Type | Touch Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (9,934) |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Plastic |
| Hardware Interface | Bluetooth, Bluetooth 5 |
| Human Interface Input | Buttons |
| Installation Type | wireless |
| Manufacturer | Nulaxy |
| Model Name | BC91 |
| Number of Channels | 1 |
| Number of Ports | 4 |
| Power Source | Battery Powered |
| Supported Application | Spotify, YouTube, MP3, AAC, etc. |
| Supported Media Type | Bluetooth Audio |
| Supported Standards | Bluetooth 5.3 |
| 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:** Battery Powered

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71ngSYiRMHL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/71GEi1BwItL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/71VKKXt8lPL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/81x9WtqCO0L.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/71JxJxHYHOL.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.

## 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 - Blue
- Qifutan Car Phone Holder Mount Phone Mount for Car Windshield Dashboard Air Vent Universal Hands Free Automobile Cell Phone Holder Fit for iPhone Smartphone Carbon Fiber

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-08-10*