# FM transmitter 4smarts 456201

**URL:** https://aio.lv/en/product--b-speech-456201--4324253
**Data updated:** 2025-12-29 16:01 (EET)
**Category:** FM Transmitters
**Manufacturer:** B-Speech
**Manufacturer code:** 456201
**EAN:** 4250774956669
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 26.44 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--b-speech-456201--4324253

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.99 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The 4smarts 456201 FM transmitter allows you to stream audio via Bluetooth and make hands-free calls. It connects through your car's cigar lighter and supports AM and FM radio bands. Compatible with MicroSD cards up to 32 GB, it features a USB Type-A connector for charging. Compact dimensions of 85 mm x 35 mm x 35 mm make it easy to use in any vehicle.

## Long description

The 4smarts 456201 FM transmitter converts your car's cigarette lighter socket into a Bluetooth audio gateway, enabling wireless streaming and hands-free calls through the vehicle radio. It supports both FM and AM radio bands, accepts MicroSD cards up to 32 GB and provides a USB Type-A port for charging devices. Its compact dimensions (85 × 35 × 35 mm) make it suitable for use in most cars.
Advantages
The device offers wireless Bluetooth audio streaming and hands-free calling while using the car radio as the playback source, reducing the need to replace the existing stereo. Support for MicroSD cards allows local playback without a phone, and the integrated USB Type-A connector supplies power for charging mobile devices. Small size ensures unobtrusive installation in the cigarette lighter socket.
Suitable for
 Playing music from a smartphone via Bluetooth
 Hands-free phone calls in the car
 Playing audio from a MicroSD card (up to 32 GB)
 Charging devices using the USB Type-A port
 Vehicles with FM/AM radio and a cigarette lighter socket
Key specifications
 Brand: B-Speech (4smarts)
 Model / MPN: 456201
 EAN: 4250774956669
 Dimensions: 85 × 35 × 35 mm
 Connectivity: Bluetooth, MicroSD slot (≤32 GB), USB Type-A
 Radio bands: FM and AM
How to use
Insert the FM transmitter into the vehicle's cigarette lighter socket and power it on. Pair your smartphone with the transmitter via Bluetooth, or insert a MicroSD card loaded with audio files. Tune your car radio to an unused FM frequency and set the transmitter to the same frequency. Play audio from your phone or MicroSD card; use the car radio to control playback volume. For hands-free calls, answer and end calls using the phone or transmitter controls according to the device's operating instructions.
Usage recommendations
For optimal performance, choose an FM frequency that is not occupied by local radio stations. If interference occurs, select a different unused frequency in your area. Keep firmware and smartphone Bluetooth settings up to date for stable connections.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| USB connector type | USB Type-A |
| Bluetooth | Yes |
| USB 2.0 ports quantity | 1 |
| Headphone connectivity | Bluetooth |
| Device interface | Cigar lighter |
| Bluetooth functions | Audiostreaming, Handsfree calling |

### Packaging content

| Feature | Value |
|---|---|
| Manual | Yes |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 60 g |
| Package depth | 35 mm |
| Package height | 125 mm |
| Package width | 90 mm |

### Technical details

| Feature | Value |
|---|---|
| Plug and Play | Yes |
| Material | ABS, Metal |
| Product colour | Black, Silver |
| Audio formats supported | FLAC, APE, MP3, WAV, WMA |
| Transmission distance | 10 m |
| Hands-free calling | Yes |
| Transmission frequency | 2.48 GHz |
| Apple docking | No |

### Storage

| Feature | Value |
|---|---|
| Compatible memory cards | MicroSD (TransFlash) |
| Card reader integrated | Yes |
| Maximum memory card size | 32 GB |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.04 kg |
| Height | 35 mm |
| Width | 85 mm |
| Depth | 35 mm |

### Display

| Feature | Value |
|---|---|
| Built-in display | No |

### Clock

| Feature | Value |
|---|---|
| Integrated clock | No |

### Radio

| Feature | Value |
|---|---|
| Supported radio bands | AM, FM |

### Power

| Feature | Value |
|---|---|
| Power source type | Cigar lighter |

## FAQ

### How much does the FM transmitter 4smarts 456201 cost, and is it available for purchase?

The price is 31.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 16.07.2026 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: Bank transfer. 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 B-Speech 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 B-Speech 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: device interface, weight, product colour, compatible memory cards, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4324253/64274602_large.webp