# FM transmitter SENCOR SWM 3535 BT — car handsfree and MP3 player with Bluetooth

**URL:** https://aio.lv/en/product--sencor-swm-3535-bt--3094645
**Data updated:** 2026-03-07 11:04 (EET)
**Category:** FM Transmitters
**Manufacturer:** SENCOR
**Manufacturer code:** SWM 3535 BT
**EAN:** 8590669285556
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sencor-swm-3535-bt--3094645

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

SENCOR SWM 3535 BT is a car FM transmitter that combines Bluetooth handsfree functionality and MP3 playback for in-car audio streaming. Designed to transmit audio to your vehicle radio via FM, it enables phone calls and wireless music streaming from compatible devices. Suitable for drivers who need hands-free calls and convenient playback from mobile sources.

## Long description

SENCOR SWM 3535 BT is a compact car FM transmitter that integrates Bluetooth handsfree functionality with MP3 playback for in-vehicle audio streaming. It connects to the car power socket and transmits audio from a paired smartphone or from local storage (USB flash drive or TF/microSD card) to the car radio via FM frequency. The unit supports handsfree phone calls through its built-in microphone and provides simple controls for play, pause, track selection and volume. A yellow non-shining LED display shows the selected FM frequency, track number and basic status information.
Advantages
The device supports Bluetooth V4.2 for wireless streaming and call handling, plus direct playback from USB flash drives and TF/microSD cards up to 32 GB. Two USB slots are provided — one dedicated for MP3 music playback and one main USB port for charging devices up to 5 V / 2.4 A. The transmitter stores the last used frequency, track number and volume level to simplify repeated use. Additional features include a built-in microphone for handsfree calls, digital tuning across the FM band and a voltage meter to monitor the car power supply.
Suitable for
 Drivers who want handsfree phone calls while keeping both hands on the wheel
 Cars without auxiliary input or Bluetooth stereo who need wireless audio streaming
 Playing MP3, WMA, FLAC or WAV files from USB flash drives or TF/microSD cards during travel
 Charging mobile devices from the vehicle while playing audio
Key specifications
 Wireless standard: Bluetooth V4.2
 Supported audio formats: MP3, WMA, FLAC, WAV
 Storage support: USB flash drive and TF/microSD card (up to 32 GB)
 USB ports: two slots (one for MP3 playback, one main for charging)
 USB charging output: DC 5 V / 2.4 A max
 FM transmit range: 87.5 – 108 MHz (206 available frequencies)
 Power supply: DC 12 / 24 V via car power plug
 Display: yellow non-shining LED frequency and track display
 Controls: play/pause, previous/next, volume control, frequency tuning
 Dimensions (W×H×D): 38 × 70 × 48 mm; Weight: 27 g
 Built-in microphone for handsfree calls; memory of last frequency, track and volume
How to use
Insert the transmitter into the car power socket, set the transmitter to an unused FM frequency and tune your car radio to the same frequency. For Bluetooth streaming, enable Bluetooth on your phone and pair it with the SENCOR SWM 3535 BT; audio and calls will route through the car stereo. For local playback, insert a USB flash drive with MP3/WMA/FLAC/WAV files or a TF/microSD card (up to 32 GB) into the appropriate slot; use the unit controls to play, pause and change tracks. Use the main USB port to charge a mobile device as needed. The transmitter remembers the last used frequency, track and volume after power off.
Usage recommendations
Select an FM frequency that has minimal radio interference in your area to ensure clear audio transmission, and position the transmitter so the built-in microphone is not obstructed for better call quality. Use a properly formatted USB drive (FAT32) and keep firmware and phone Bluetooth settings updated for optimal compatibility. Avoid occupying the car power socket with multiple high-draw chargers simultaneously to prevent power issues.

## FAQ

### How much does the SENCOR SWM 3535 BT FM transmitter cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 93 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 03.07.2026 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, 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 SENCOR 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 SENCOR 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/3094645/51565683_large.webp