---
product_id: 342339142
title: "Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8\" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black"
brand: "guanda technologies co., ltd."
price: "FREE"
currency: RON
in_stock: false
reviews_count: 6
category: "Guanda Technologies Co., Ltd."
url: https://www.desertcart.ro/products/342339142-bluetooth-fm-transmitter-in-car-wireless-radio-adapter-kit-w
store_origin: RO
region: Romania
---

# 4-in-1 multi-source audio transmission 1.8" vibrant color display 18W QC3.0 fast charging dual USB ports Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black

**Brand:** guanda technologies co., ltd.
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Tune In, Charge Up & Drive Smart — Your Car’s New Best Friend!

## Quick Answers

- **What is this?** Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black by guanda technologies co., ltd.
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/342339142-bluetooth-fm-transmitter-in-car-wireless-radio-adapter-kit-w)

## Best For

- guanda technologies co., ltd. enthusiasts

## Why This Product

- Trusted guanda technologies co., ltd. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up Fast & Safe:** Dual USB ports with QC3.0 and 5V/2.4A outputs plus built-in multi-protection tech.
- • **Vivid 1.8" Color Display:** Crystal-clear info on calls, music, voltage & more with a sleek 360° flexible gooseneck.
- • **Hi-Fi Stereo with EQ Modes:** Enjoy MP3, WMA, FLAC files with 5 customizable EQ presets for premium in-car sound.
- • **Seamless 4-in-1 Audio Connectivity:** Bluetooth, AUX, USB, and TF card support for ultimate versatility.
- • **Hands-Free Calls & Smart Navigation:** Noise suppression and echo cancellation for crystal-clear calls and voice directions.

## Overview

The Guanda RM100 Bluetooth FM Transmitter is a cutting-edge in-car audio adapter featuring a 1.8-inch colorful LCD, 4-in-1 audio input options (Bluetooth, AUX, USB, TF card), and dual USB charging ports with QC3.0 fast charge. Designed for seamless hands-free calling with noise suppression and echo cancellation, it supports multiple music formats and offers 5 EQ modes for superior sound quality. Its flexible 360° gooseneck and broad device compatibility make it an essential upgrade for any professional’s vehicle.

## Description

Guanda’s 4in1 Bluetooth FM Transmitter for Car, you can drive safely. Answer, hang up, reject a call, redial the last number, and pick your favorite song all from one easy to use display.Car FM Transmitter Bluetooth Function:Guanda’s 4-in-1 audio car Bluetooth adapter automatically connects to the last paired device and provides a stable connection for seamless handsfree calling that is easy and safe.2 USB Charging Ports:With two USB charging ports on Guanda car Bluetooth FM transmitter, you can charge your phone or other devices simultaneously. No need to worry about power shortages.Guanda Bluetooth FM Transmitter for Car Specifications:- Rated working voltage: 12V-24V- Extreme working voltage: 9-32V- USB1 output: Type C PD 20W- USB2 output: (3.6V-6.5V/3A, 6.5V-9V/1.5A, 9V-12V/1A)- Working temperature: <63 degrees- Music format: MP3, FLAC, WMA- Bluetooth version: V4.2 + EDR- Frequency: 20HZ - 20KHZ- Sensitivity: -42db+/3db 360- Voltage: 5V +/-0.5- Working current: 45ma (max)- Stand-by current: 25ma (max)- BT frequency: 2.402 - 2.480 GHz- BT effective range: 5m- Sensitivity: -92dBm- RF output: 4dBm- FM frequencies: 88.1MHz - 107.9MHz- Transmitted power: 87dBuv - 107dBuv- Call effective range: 2mGuanda Bluetooth FM Transmitter for Car Package Includes:1 x 4in1 FM Transmitter Bluetooth Car Adapter1 x 3.55mm AUX Audio Cable1 x User Manual (Aux port supports both input and output for this version.)Now, plug in, tune your car's radio and Guanda 4 in 1 car FM transmitter to the same FM frequency, and hit the road while listening to your favorite tunes.

Review: Not bad - Bluetooth is not clear
Review: Cumple su cometido, no se le puede pedir más. - Funciona, no esperen una calidad de sonido increíble..a pesar de leer archivos Flac. Pero cumple para lo que es, no desterrar nuestro equipo de autoradio de generaciones anteriores.

## Features

- EXCELLENT 4-in-1 BLUETOOTH FM TRANSMITTER: Guanda’s Bluetooth car adapter can accept UNIQUE 4 different audio transmission ways: Bluetooth; U Disk; AUX in/out Port; TF Card. Our Car Radio Adapter Bluetooth FM Transmitter has Broad compatibility with Samsung, LG, Sony, iPhone (including X, XS, 11/12/13 Pro Max), Android, iPad, and more.
- ADVANCED 1.8" DIGITAL COLORFUL LCD DISPLAY: Via Our Bluetooth FM transmitters for car, more indicators can be clearly seen, such as Bluetooth name, FM stations, connected device's name, car voltage, music name, music amount, colorful and lively music spectrum, play status, volume etc. Meanwhile, car radio adapter Bluetooth transmitter adopts rotated 360-degree flexible elegant gooseneck design.
- OPTIMAL CHOICE FOR YOUR VEHICLE: This audio adapter FM transmitter Bluetooth car kit transmits music on your mobile device to a FM preset frequency, as while wonderful stereo sound is delivered via vehicle's speaker. The car transmitter can play MP3, WMA, or FLAC files, you can enjoy 5 Hi-Fi stereo noble and elegant EQ music modes switch at will.
- ONE CLICK HANDS-FREE CALLING & VOICE SMART NAVIGATION: Bluetooth adapter for car is equipped with Noise Suppression (CVC) technology and echo-cancellation, that brings superior calling experience. Besides, you can also get crystal clear voice navigation and Hi-Fi stereo music from your car Bluetooth adapter, which means your driving trip will be more safe and more cozy.
- INTELLIGENT CAR CHARGER ADAPTER, SAFE AND FAST CHARGE: FM transmitter for car comes with 2 USB ports (PD 20W and fast charge 18W), you can charge two devices simultaneously. Built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection, it will effectively ensure safe charging.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08SJB73PW |
| Additional Features | Bluetooth FM Transmitter, Bu, Fast Charging |
| Audio Input | 3.5mm AUX |
| Audio Output Mode | FM transmission |
| Audio Output Type | Speaker |
| Best Sellers Rank | #41,276 in Electronics ( See Top 100 in Electronics ) #33 in Car Audio FM Transmitters |
| Bluetooth support? | Yes |
| Brand | GUANDA TECHNOLOGIES CO., LTD. |
| Color | Black |
| Compatibility Options | Smartphone, Radio |
| Compatible Devices | Smartphones, Tablets, Bluetooth Devices, USB Devices, Aux Devices |
| Compatible with Vehicle Type | Cars, vans, trucks |
| Connectivity Technology | AUX, Bluetooth, USB |
| Connectivity technology | AUX , Bluetooth, USB |
| Connector Type Used on Cable | USB Type C |
| Control Method | Touch |
| Control Type | Voice Control |
| Controller Type | Bluetooth Control |
| Customer Reviews | 4.3 out of 5 stars 1,566 Reviews |
| Data Link Protocol | Bluetooth |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Hardware Interface | Bluetooth, USB |
| Human Interface Input | Microphone |
| Includes Remote | No |
| Installation Type | wireless |
| Item Weight | 0.15 Kilograms |
| Item weight | 0.15 Kilograms |
| Manufacturer | GuandaTechnologies Co., Ltd. |
| Material | Plastic |
| Model Name | RM100 |
| Mounting Type | Dashboard Mount |
| Number of Channels | 2 |
| Number of Ports | 2 |
| Outer Material | Plastic |
| Power Source | Vehicle Powered |
| Power source | Vehicle Powered |
| Rechargeable Battery Included | No |
| Screen Size | 1.8 Inches |
| Special features | Bluetooth FM Transmitter , Bu, Fast Charging |
| Supported Application | iPhone, Samsung, Xiaomi, Sony, Google iPad, MP3, WMA, FLAC |
| Supported Media Type | MP3, FLAC, WMA, USB, SD Card, Aux |
| Supported Standards | Bluetooth V4.2 + EDR |
| Unit Count | 1.0 Count |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** GUANDA TECHNOLOGIES CO., LTD.
- **Connectivity technology:** AUX, Bluetooth, USB
- **Material:** Plastic
- **Power source:** Battery Powered

## Images

![Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black - Image 1](https://m.media-amazon.com/images/I/713Q+ddCttL.jpg)
![Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black - Image 2](https://m.media-amazon.com/images/I/81Me5nAphVL.jpg)
![Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black - Image 3](https://m.media-amazon.com/images/I/81GIkFHFAzL.jpg)
![Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black - Image 4](https://m.media-amazon.com/images/I/71BI0UncuqL.jpg)
![Bluetooth FM Transmitter in-Car Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger PD 20W for All Smartphones Audio Players - RM100C Black - Image 5](https://m.media-amazon.com/images/I/81RIkzN5gJL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐ Not bad
*by N***G on 23 April 2023*

Bluetooth is not clear

### ⭐⭐⭐⭐⭐ Cumple su cometido, no se le puede pedir más.
*by M***M on 16 June 2022*

Funciona, no esperen una calidad de sonido increíble..a pesar de leer archivos Flac. Pero cumple para lo que es, no desterrar nuestro equipo de autoradio de generaciones anteriores.

### ⭐⭐⭐⭐⭐ Buen producto
*by S***. on 9 September 2022*

Necesitaba un lector de USB, para mi música y no quería gastarme un pastizal en una Radio cd, que leyese todo para escuchar mi música, entrase en un mechero súper escondido, es ideal además pone máximo 32G, pues a mi lee de 64, perfectamente y sin ruidos.

---

## 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.ro/products/342339142-bluetooth-fm-transmitter-in-car-wireless-radio-adapter-kit-w](https://www.desertcart.ro/products/342339142-bluetooth-fm-transmitter-in-car-wireless-radio-adapter-kit-w)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-10-03*