---
product_id: 390335334
title: "Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth V5.0 Adapter with Big Color Screen, Support QC3.0 Fast Charging, Hands-Free Call, MP3 Music Player BASS&TRE Booster, TF Card AUX-KM28"
brand: "nulaxy"
price: "€ 51.90"
currency: EUR
in_stock: true
category: "Nulaxy"
url: https://www.desertcart.be/products/390335334-nulaxy-bluetooth-fm-transmitter-for-car-wireless-car-bluetooth-v5
store_origin: BE
region: Belgium
---

# QC3.0 Fast Charging - 80% in 35 mins 2.05-inch Big Color Screen BASS & TRE Audio Booster Modes Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth V5.0 Adapter with Big Color Screen, Support QC3.0 Fast Charging, Hands-Free Call, MP3 Music Player BASS&TRE Booster, TF Card AUX-KM28

**Brand:** nulaxy
**Price:** € 51.90
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate your drive with smart sound & style—because your car deserves the upgrade!

## Quick Answers

- **What is this?** Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth V5.0 Adapter with Big Color Screen, Support QC3.0 Fast Charging, Hands-Free Call, MP3 Music Player BASS&TRE Booster, TF Card AUX-KM28 by nulaxy
- **How much does it cost?** € 51.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/390335334-nulaxy-bluetooth-fm-transmitter-for-car-wireless-car-bluetooth-v5)

## 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

- • **Rapid QC3.0 Charging:** Power up your devices to 80% in just 35 minutes—because downtime is not an option.
- • **Mood-Setting LED Ambiance:** Choose from 8 colorful backlit modes to transform your car interior into a vibrant, personalized space.
- • **Vibrant Big Color Display:** Stay informed at a glance with a crisp 2.05-inch screen showing calls, battery voltage & track info.
- • **Immersive Audio Experience:** Customize your sound with BASS & TRE boosters plus CVC & DSP noise cancellation for crystal-clear calls and music.
- • **Seamless Hands-Free Control:** Answer, hang up, or reject calls effortlessly with voice commands and a tactile spin button for safer driving.

## Overview

The Nulaxy KM28 Bluetooth FM Transmitter is a cutting-edge car audio adapter featuring a large 2.05-inch color screen, QC3.0 fast charging, and multi-mode audio input (Bluetooth, USB, TF card, AUX). It supports hands-free calls with advanced noise cancellation and customizable BASS & TRE sound modes. Mounted conveniently on your air vent, it also offers 8 LED backlight colors to personalize your driving ambiance, making it a must-have for tech-savvy professionals seeking safety, style, and superior sound on the road.

## Description

desertcart.com: Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth V5.0 Adapter with Big Color Screen, Support QC3.0 Fast Charging, Hands-Free Call, MP3 Music Player BASS&TRE Booster, TF Card AUX-KM28 : Electronics

## Features

- Big Color Screen & Air Vent Clip: Nulaxy KM28 car bluetooth adapter adopts a Big color screen providing you with more information such as incoming phone numbers, car battery voltage, FM frequency, and track names. In addition, the air vent installation offer you better view angle for your safety.
- Dual-USB port & 4 Reading Modes: QC3.0 charging enables you to charge 80% of your device battery within 35 minutes. This radio adapter supports Bluetooth, USB driver, TF card slot(up to 64GB), and 3.5mm AUX output, which meets your various needs.
- Hands-free Call: Transfer all your phone call and audio streaming into wireless through the bluetooth transmitter. You can easily answer,hang up,reject a phone call with the spin button. Enjoy the smart voice control from phone assistant. Try to say “Call Mom”, “Get directions home”, get things done more conveniently and enjoy safe driving.
- Improved Audio Performance: The big microphone can collect voice effectively, and the CVC&DSP noise cancellation can avoid traffic background noise for clearer conversation. Additionally, it provides the BASS & TRE booster modes for you to adjust, just get immersed into your customized music style.
- 8 Colorful LED Backlit Modes: Simply long press the light button to enter the light change mode and choose from 7 mono color modes or the dynamic color-changing mode what you like to create a vibrant ambiance, let it color your car!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LYR69TR |
| Additional Features | 8 Colorful LED Backlit Modes, Air Vent Clip, Big Color Screen, Fast Charging, Hands-Free Calls |
| AntennaDescription | Built-in antenna |
| Audio Input | Bluetooth, USB drive, TF card, AUX line |
| Audio Output Mode | Stereo |
| Audio Output Type | internal |
| Battery Charge Time | 35 minutes |
| Battery Type | Lithium-ion battery with specific weight and energy content |
| Battery Weight | 10 Grams |
| Best Sellers Rank | #23 in MP3 Player FM Transmitters |
| Bluetooth support? | Yes |
| Brand | Nulaxy |
| Color | Black |
| Compatibility Options | Smartphone, MP3 player, USB drive, TF card, Bluetooth-enabled devices, Car stereo system |
| Compatible Devices | Car |
| Compatible with Vehicle Type | Car |
| Connectivity Technology | Bluetooth |
| Connector Type Used on Cable | USB 3.0 |
| Control Method | Voice |
| Control Type | Button Control |
| Controller Type | Button Control |
| Customer Reviews | 4.2 out of 5 stars 6,132 Reviews |
| Display Type | Color Screen |
| Enclosure Material | Plastic |
| Hardware Interface | Bluetooth, USB |
| Human Interface Input | Microphone |
| Includes Remote | No |
| Installation Type | Plug In |
| Item Dimensions L x W x H | 3.23"L x 2.05"W x 1.69"H |
| Lithium Battery Weight | 0.5 Grams |
| Lithium-Battery Energy Content | 185 Watt Hours |
| Manufacturer | Nulaxy |
| Material | Plastic |
| Model Name | KM28 Bluetooth FM Transmitter for Car |
| Mounting Type | Air Vent Mount |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Number of Channels | 2 |
| Number of Lithium-ion Cells | 1 |
| Number of Ports | 4 |
| Outer Material | Plastic |
| Power Source | Battery Powered,Corded Electric |
| Product Dimensions | 3.23"L x 2.05"W x 1.69"H |
| Rechargeable Battery Included | Yes |
| Screen Size | 2.05 Inches |
| Special Feature | 8 Colorful LED Backlit Modes, Air Vent Clip, Big Color Screen, Fast Charging, Hands-Free Calls |
| Supported Application | Bluetooth-enabled applications |
| Supported Media Type | bluetooth |
| Supported Standards | WMA MP3 WAV APE FLAC |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
| Warranty Description | Goods can be returned and exchanged for no reason within 30 days after arrival |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** Nulaxy
- **Connectivity Technology:** Bluetooth
- **Material:** Plastic
- **Power Source:** Battery Powered,Corded Electric
- **Special Feature:** 8 Colorful LED Backlit Modes, Air Vent Clip, Big Color Screen, Fast Charging, Hands-Free Calls

## Images

![Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth V5.0 Adapter with Big Color Screen, Support QC3.0 Fast Charging, Hands-Free Call, MP3 Music Player BASS&TRE Booster, TF Card AUX-KM28 - Image 1](https://m.media-amazon.com/images/I/71fnvQaGttL.jpg)

## Available Options

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

## Questions & Answers

**Q: What are the dimentions of the unit?**
A: 3 to 3.5 wide 1.5 tall. I love mine. 
I have bought 3 others. None had a off button all were to bright. This one change the color to red and all is well. The hands free phone is wonderful.

**Q: Does aux port support output eg. aux out?**
A: The Auxiliary (AUX) port is a standard sized plug in jack. It takes incoming audio from for example, your radio or tape recorder or phone so that it can be broadcast to your car radio to play out through your car speakers.  So to summarize, it only takes audio in, it does not put audio out.

**Q: Will this unit outpost to aux?**
A: the aux is for input NOT output. The output is the FM station you sync to.

**Q: Doesn't fit in my cigarette lighter - trying to install in a 2000 porsche boxster. anyone find a workaround? it just pops right out.**
A: You have to push it in really, really hard & it will suddenly snap & stay in. I already had a lighter adapter that expands your 1 outlet to 3 outlets. The plug for that works just fine in the lighter & then I plugged the unit hard into the adapter. That way if I can't unplug it, I'm covered!!!

## Frequently Bought Together

- Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth V5.0 Adapter with Big Color Screen, Support QC3.0 Fast Charging, Hands-Free Call, MP3 Music Player BASS&TRE Booster, TF Card AUX-KM28
- Nulaxy Car Bluetooth FM Transmitter [2024 Upgraded], 1.44" Display Flexible Gooseneck, Handsfree Call Wireless Music Stereo Audio Player Radio Adapter Car Kit USB Phone Charger, TF SD Card AUX-KM18
- SUUSON Upgraded 3-in-1 Car Phone Holder Mount [Powerful Suction] Phone Mount for Car Dashboard Air Vent Windshield,for All iPhone Android Phone (Black)

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**Shop now:** [https://www.desertcart.be/products/390335334-nulaxy-bluetooth-fm-transmitter-for-car-wireless-car-bluetooth-v5](https://www.desertcart.be/products/390335334-nulaxy-bluetooth-fm-transmitter-for-car-wireless-car-bluetooth-v5)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-07-21*