---
product_id: 810891455
title: "Upgraded Aux Bluetooth 5.4 Adapter for Car, 2 in 1 Bluetooth Audio Transmitter and Receiver 3.5mm Jack RCA Wireless Dongle Stereo System for TV, PC, Headphone, Home, Speaker, Amplifier, HandsFree Call"
brand: "wekefon"
price: "€ 35.18"
currency: EUR
in_stock: true
reviews_count: 8
category: "Wekefon"
url: https://www.desertcart.fi/products/810891455-upgraded-aux-bluetooth-5-4-adapter-for-car-2-in
store_origin: FI
region: Finland
---

# Bluetooth 5.4 stable 33ft range 2-in-1 TX/RX wireless audio Built-in HD mic for hands-free calls Upgraded Aux Bluetooth 5.4 Adapter for Car, 2 in 1 Bluetooth Audio Transmitter and Receiver 3.5mm Jack RCA Wireless Dongle Stereo System for TV, PC, Headphone, Home, Speaker, Amplifier, HandsFree Call

**Brand:** wekefon
**Price:** € 35.18
**Availability:** ✅ In Stock

## Summary

> 🎧 Upgrade your sound game—wireless freedom wherever you go!

## Quick Answers

- **What is this?** Upgraded Aux Bluetooth 5.4 Adapter for Car, 2 in 1 Bluetooth Audio Transmitter and Receiver 3.5mm Jack RCA Wireless Dongle Stereo System for TV, PC, Headphone, Home, Speaker, Amplifier, HandsFree Call by wekefon
- **How much does it cost?** € 35.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/810891455-upgraded-aux-bluetooth-5-4-adapter-for-car-2-in)

## Best For

- wekefon enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play with Auto Reconnect:** Instant pairing and auto-reconnect means zero setup stress—just power on and enjoy.
- • **Hands-Free Calls with HD Microphone:** Stay connected safely on the road with crystal-clear call quality and easy call controls.
- • **Next-Gen Bluetooth 5.4 Connectivity:** Experience ultra-stable, low-latency audio with a strong connection up to 33 feet—no dropouts, no delays.
- • **Ultra-Compact & Travel-Ready Design:** Pocket-sized powerhouse that fits perfectly in your car, home, or bag for on-the-go audio freedom.
- • **Seamless 2-in-1 Bluetooth Transmitter & Receiver:** Stream or receive wireless audio effortlessly from any AUX/RCA device or smartphone.

## Overview

The Upgraded Aux Bluetooth 5.4 Adapter is a versatile 2-in-1 transmitter and receiver that wirelessly connects non-Bluetooth devices via 3.5mm AUX or RCA ports. Featuring advanced Bluetooth 5.4 technology, it delivers stable, low-latency audio streaming up to 33 feet. With built-in HD microphone and hands-free call support, plus plug-and-play ease and ultra-compact design, it transforms your car, home stereo, or headphones into a wireless audio powerhouse.

## Description

Buy Upgraded Aux Bluetooth 5.4 Adapter for Car, 2 in 1 Bluetooth Audio Transmitter and Receiver 3.5mm Jack RCA Wireless Dongle Stereo System for TV, PC, Headphone, Home, Speaker, Amplifier, HandsFree Call: Wireless Audio Receivers & Adapters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: It works - I was surprised it works really well. I would include a larger rca adapter for us old folks and a larger more readable instruction manual. But for the money it does the job.
Review: Very easy to set up, worked great! - This was a great solution for my older garage stereo system. It allows me to play music from my cell, without extra cables. Very hot volume, easy to setup, good battery life and functions extremely well. Great value.

## Features

- 【Enjoy Wireless Music & 2-in-1 Bluetooth Transmitter Receiver】 This 2 in 1 wireless audio adapter supports both transmitter and receiver modes, TX Mode: Connect to non-Bluetooth audio sources (TV, MP3, CD player, PC) via 3.5mm AUX/RCA ports, then pair with Bluetooth headphones, AirPods or Speakers. Instantly stream crystal-clear wireless audio for immersive movies, music, or entertainment. RX Mode: Pair your smartphone/tablet with the bluetooth receiver, then plug it into non-Bluetooth home stereos, Old wired speaker/amplifier or wired car audio systems. Play music through old speakers in studio-quality, enabling hassle-free music streaming.
- 【Auto Reconnection & Plug and Play】 This car adapter auxiliary design with ON/OFF switch, when you turn on the switch, it will automatically enter the pairing mode, Then automatically pair with the last connected phone after powered on. Bluetooth 5.4 Music Audio Receiver will enter pairing mode if the Bluetooth of the last phone is unsearchable.
- 【Bluetooth 5.4 Version & 100% Stable Connection & & Long-Distance Transmission】 Our adopts advanced Bluetooth 5.4 technology for faster pairing, and Wireless audio adapter has stable connection and fast transmission, to offer better quality wireless audio experience while listening to music or making calls. Wireless Bluetooth Music Receiver maintains a strong connection up to 33ft without delay or dropout (walls, doors, Wi-Fi routers, Wireless TV adapter, etc.), Enjoy uninterrupted, clear audio whether you’re driving, watching TV or traveling.
- 【Wide Compatibility & 100% Reliable Performance】 The 2 in 1 Bluetooth transmitter receiver works with most 3.5mm AUX enabled devices such as car stereos, home speakers, wired headphones and more. Compatible with smartphones, tablets, laptops and TVs to use with any Bluetooth headphones or earbuds (including AirPods 1/2/3/Pro). Tips: Please fully charge before first use and avoid obstacles for optimal bluetooth connection.
- 【Built-in HD Microphone & Hands-Free Calling】 This 3.5mm bluetooth aux adapter has a built-in HD microphone, Button to answer / redial / hang up / reject calls, play/pause music. Answer phone calls without picking up the phone. no need to operate the phone interface, so you can drive safely.
- 【Easy Operation】 Auto reconnect at startup, no complex setup required. Use the multi-function button to power on/off. LED indicators show real-time connection status. Tips: For best performance in TX mode, turn off nearby Bluetooth devices (e.g., phones/iPads/tablets/others bluetooth headphone speaker etc) when pairing. In TX Mode: Just turn on the bluetooth headphone or bluetooth speaker's bluetooth, then put the bluetooth headphone or bluetooth speaker close to the adapter, then it will pairing automatically, After successful pairing, the indicator light will no flashing.
- 【Ultra-Portable Compact Design】 Features an ON/OFF switch; The size of the adapter is small, you can carry it anywhere. automatically enters pairing mode when turned on for instant use. The bluetooth transmitter and receiver ultra-compact, lightweight body is easy to carry and store in your car, home, pocket or bag, perfect for daily use and travel.
- 【What's in the Package】 2 in 1 Bluetooth Transmitter Receiver, USB-A to USB-C Charging Cable(30cm), 3.5mm to AUX Audio Cable(50cm), 3.5mm to RCA Audio Cable(50cm), 3.5mm Metal Audio Adapter, and user manual. and user manual.(Note: We offer 4 different accessory styles, please choose carefully according to your needs!)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BD61QQPM |
| Additional Features | Bluetooth 5.4, Fast Charging, Low Latency, Noise Cancellation, Hands-Free Calls, Stereo music, Easy to use |
| Audio Input | AUX |
| Audio Output Mode | Stereo |
| Audio Output Type | Auxiliary, Bluetooth, RCA |
| Battery Charge Time | 2 hours |
| Battery Type | Lithium-Polymer |
| Battery Weight | 2.29 g |
| Best Sellers Rank | #7 in MP3 Player Bluetooth Transmitters |
| Brand | WEKEFON |
| Color | B(AUX+RCA)-Black |
| Compatibility Options | MP3 Player; Laptop; PC; Cars Smartphone; Speakers; Amplifier; Home Stereo system; Television; TV; Flight TV; Headphones |
| Compatible Devices | MP3 Player; Laptop; PC; Cars Smartphone; Speakers; Amplifier; Home Stereo system; Television; TV; Flight TV; Headphones |
| Connectivity Technology | Bluetooth, AUX , 3.5mm Jack |
| Connector Type Used on Cable | Auxiliary |
| Control Method | Push Button |
| Customer Reviews | 3.9 out of 5 stars 35 Reviews |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Metal |
| Hardware Interface | Bluetooth |
| Installation Type | Plug In |
| Item Dimensions L x W x H | 2.4"L x 0.87"W x 0.48"H |
| Lithium-Battery Energy Content | 90 milliampere_hour |
| Manufacturer | WEKEFON |
| Material | Acrylonitrile Butadiene Styrene (ABS) , Metal |
| Model Name | C28-4-US |
| Mounting Type | Plug In |
| Number of Batteries | 1 Nonstandard Battery batteries required. (included) |
| Number of Channels | 2 |
| Number of Lithium-ion Cells | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 2.4"L x 0.87"W x 0.48"H |
| Special Feature | Bluetooth 5.4, Fast Charging, Low Latency, Noise Cancellation, Hands-Free Calls, Stereo music, Easy to use Special Feature Bluetooth 5.4, Fast Charging, Low Latency, Noise Cancellation, Hands-Free Calls, Stereo music, Easy to use See more |
| Supported Media Type | Standard Audio File Formats |
| Supported Standards | Bluetooth 5.4 |
| UPC | 797457325274 |
| Voltage | 1.5 volts |
| Warranty Description | 2 years-warranty |
| Wireless Compability | Bluetooth |

## Images

![Upgraded Aux Bluetooth 5.4 Adapter for Car, 2 in 1 Bluetooth Audio Transmitter and Receiver 3.5mm Jack RCA Wireless Dongle Stereo System for TV, PC, Headphone, Home, Speaker, Amplifier, HandsFree Call - Image 1](https://m.media-amazon.com/images/I/71eUVzhbYDL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works
*by J***L on September 2, 2026*

I was surprised it works really well. I would include a larger rca adapter for us old folks and a larger more readable instruction manual. But for the money it does the job.

### ⭐⭐⭐⭐⭐ Very easy to set up, worked great!
*by S***N on August 25, 2026*

This was a great solution for my older garage stereo system. It allows me to play music from my cell, without extra cables. Very hot volume, easy to setup, good battery life and functions extremely well. Great value.

### ⭐ Worthless
*by R***R on August 9, 2026*

Connectivity was awful. With volumes all the way up, we barely got a whisper of sound.

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**Shop now:** [https://www.desertcart.fi/products/810891455-upgraded-aux-bluetooth-5-4-adapter-for-car-2-in](https://www.desertcart.fi/products/810891455-upgraded-aux-bluetooth-5-4-adapter-for-car-2-in)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-10-21*