# FM MP3 Bluetooth Car Transmitter Riff RF-CAR-B2 with 2× USB QC3.0 3.1A, Black

**URL:** https://aio.lv/en/product--riff-rf-car-b2--10633499
**Data updated:** 2025-12-03 00:31 (EET)
**Category:** FM Transmitters
**Manufacturer:** Riff
**Manufacturer code:** RF-CAR-B2
**EAN:** 4752219008358
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--riff-rf-car-b2--10633499

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

Riff RF-CAR-B2 is a Bluetooth FM MP3 car transmitter that streams audio from mobile devices to your vehicle radio and plays MP3 files. Equipped with two USB ports (Quick Charge 3.0 and total 3.1A) for fast device charging, the unit supports hands-free calls and displays basic track info. Ideal for older cars without Bluetooth for in-car music and charging.

## Long description

This Bluetooth MP3 player for cars combines a high-performance Bluetooth module and an MP3 decoder chip to stream audio to a car stereo via FM transmission or play files from a TF (microSD) card. It also functions as a hands-free car kit with a built-in microphone and a 5V/1A USB charger for charging portable devices.
Advantages
The device supports A2DP streaming for direct music playback from a paired phone and can automatically reconnect when turned on. CVC noise and wind suppression improves call clarity and enables full duplex hands-free calling. No vehicle modification is required — it transmits audio wirelessly to the car radio and can play MP3 files from an external TF card.
Key specifications
Bluetooth version: V3.0 + EDR
Bluetooth frequency response: 20 Hz – 20 kHz
Bluetooth sensitivity: -42 dB ± 3 dB
Operating frequency band: 2.402 – 2.480 GHz
Bluetooth sensitivity (RX): -92 dBm
RF output: 4 dBm
Effective Bluetooth range: 5 meters
FM transmission range: 87.5 MHz – 108.0 MHz
FM transmitted power: 87 dBµV / 107 dBµV
Effective FM range: approx. 2 meters
Voltage: 5 V ± 0.5 V
Operating current: 45 mA
Standby current: 25 mA
Built-in USB output: 5 V / 1000 mA
Supports external TF card for MP3 playback
How to use
Plug the device into the car power outlet, set your car radio to an unused FM frequency within 87.5–108.0 MHz, and tune the player to the same frequency. Pair your mobile phone via Bluetooth (V3.0+EDR); if A2DP is supported on the phone, music will play automatically after connection. Insert a TF card with MP3 files to play audio directly from the card. Use the built-in microphone for hands-free calls. The device also provides a 5 V/1 A USB output to charge portable devices while driving.
Recommendations
For best audio quality, choose an FM frequency with little local radio interference and keep the phone within the 5 m Bluetooth range. Use a high-quality TF card formatted correctly for reliable MP3 playback.

## FAQ

### How much does the Riff RF-CAR-B2 Bluetooth FM MP3 Car Transmitter cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 32 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Friday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Riff products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Riff service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10633499/66575162_large.webp