What is the size of the plug-in connector, and which car models is it compatible with?

Sizes: Diameter 24mm with spring clip, Depth 57mm

How can I avoid or reduce noise?

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.

How do I match & switch frequencies?

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.

The device isn't working/power isn't responding/display isn't showing/car audio isn't receiving sound/unable to play?

1) Ensure that the FM transmitter is on.

How to pair the FM transmitter with your phone via Bluetooth?

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.

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Description

🚗⚡ Charge, Connect, and Cruise in Style!

BASS THAT MOVES YOU - Activate deep bass with one touch and transform your car into a concert hall with rich, immersive sound.
GLOW YOUR WAY AT NIGHT - Five-color LED backlit design not only looks sleek but ensures intuitive, safe operation after dark.
NEXT GEN BLUETOOTH 5 3 - Experience seamless, lag-free streaming and calls with the latest Bluetooth 5.3 tech—crisp, stable, and future-proof.
POWER UP AT LIGHTNING SPEED - 54W combined PD36W & QC3.0 18W ports crush battery anxiety with ultra-fast charging for up to 4 devices simultaneously.
DRIVE SAFER WITH SMART CONTROLS - Voice command support and tactile raised buttons let you keep your eyes on the road and hands on the wheel.

The Nulaxy54W Bluetooth 5.3 Car Adapter is a powerhouse FM transmitter and charging hub featuring 54W total fast charging across 4 ports (PD36W & QC3.0 18W), cutting-edge Bluetooth 5.3 for superior audio and calls, deep bass enhancement, and customizable 5-color LED backlighting. Designed for safety and compatibility with 12V-24V vehicles, it offers hands-free voice commands and precise tactile controls, making it the ultimate all-in-one car tech upgrade.

Specifications

Control Method	Touch
Controller Type	Button Control, Voice Control
Control Type	Button Control
Human-Interface Input	Buttons
Connector Type Used on Cable	USB Type C
Number of Ports	4
Hardware Connectivity	Bluetooth, USB
Item Weight	0.07 Kilograms
Bluetooth support?	Yes
Data Link Protocol	Bluetooth data link protocol
Wireless Compability	Bluetooth
Connectivity Technology	Bluetooth, USB
Audio Output Mode	Stereo
Number of Channels	1
Audio Input	Microphone
Audio Output Type	bluetooth
Voltage	12 Volts (DC)
Rechargeable Battery Included	No
Power Source	Battery Powered
Supported Application	Any Bluetooth-supported audio application
Compatibility Options	Bluetooth devices, USB devices including USB Type C
Supported Standards	Bluetooth 5.3
Compatible Devices	Car Stereo System
Installation Method	Plug in
Includes Remote	No
Color	Black
Additional Features	Hands-Free Calls, 54W High Power Fast Charging, Colorful Lighting Effects, Deep Bass, Built-In Microphone

Reviews

S**E

Brilliant!

Simple to use. Looks good. Certainly does the job! Very pleased with the purchase.

2.09.2025

S**Y

100% recommend the product and delivery

Really good product, fast service, would 100% recommend

20.09.2025

E**C

Okay for the Job

Does its job though a bit glitchy at times.

13.09.2025

A**.

Brilliant value for money

So simple to use. Plug in put radio on fm,bingo, hands free phone radio channels off your phone etc sat nav over sound system, brilliant

7.09.2025

M**.

It echoes for the other person

Good build quality. Only one issue is my voice echoes at the other end of the phone. I can hear the other person clearly.Except for the echo bit, it's good

1.09.2025

P**R

Not suitable

It was not suitable and was returned.

18.09.2025

T**N

Nulaxy

I am very happy with the Nulaxy device, it’s working great in my Daf lorry

19.09.2025

E**D

Brilliant way to update car audio

Initially I was skeptical that such a small item would be quality. How wrong I was, I'm delighted

17.09.2025

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