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2-in-1 3.5m Bluetooth Auxiliary Adapter Bluetooth 5.4 Car Audio Transmitter Rece

4.7 (159 reviews)
£22.55

£22.55 inc. VAT (£18.79 ex. VAT)

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42 ordered this week
  • 3.5m cable reaches back seats easily, ideal for passengers controlling playlists.
  • Bluetooth 5.4 gives faster pairing and steadier audio on long drives.
  • 2-in-1 transmitter and receiver adds Bluetooth to old cars and home stereos.
  • 3.5mm AUX connection works with most car stereos, speakers and wired headphones.
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Why Choose BTDock

Modernise Your Legacy Audio

The BTDock 2-in-1 adapter is the simplest way to add modern wireless connectivity to your favourite hardware. Whether you want to stream Spotify to a classic Yamaha AV receiver or add Bluetooth functionality to an older car stereo, this compact device handles it all. Featuring the latest Bluetooth 5.4 protocol, it ensures a rock-solid connection with minimal lag, making it perfect for both music and TV audio.

Transmitter & Receiver in One

Versatility is at the heart of the BTDock. In Receiver (RX) mode, it turns any wired speaker or car AUX port into a wireless system. Switch to Transmitter (TX) mode, and you can send audio from your non-Bluetooth TV or PC directly to your wireless headphones. It's the ultimate tool for a clutter-free, modern audio environment.

Designed for Real-World Setups

We noticed most adapters come with tiny 10cm cables that leave the device dangling awkwardly. BTDock includes a premium 3.5m auxiliary cable, allowing you to mount the adapter on your dashboard, desk, or TV stand while keeping the wiring hidden. It is fully compliant with UKCA and CE standards, ensuring safety and performance for your home and vehicle.

Technical Specifications

5.4 (Latest Protocol)
Up to 15m (Line of Sight)
3.5m AUX / Jack
USB-A (5V)
3.5 Metres
UKCA, CE, RoHS
<40ms (Low Latency)
2 Years UK

Price Comparison

See how our price compares across UK retailers

BTDock UK (Specialist)BEST
£22.55
Delivery: FREEWarranty: 12 months + UK Support
eBay (est.)
£28.19
Delivery: VariesWarranty: Seller dependent
High Street RRP
£36.08
Delivery: N/AWarranty: Varies

Prices checked 11 May 2026. Prices may vary.

Customer Reviews

4.7 out of 5Based on 159 reviews
Verified Purchase

Perfect for my old Yamaha AV receiver. I didn't want to buy a new one just for Spotify, and this works flawlessly. The long cable is a godsend for my rack setup.

Alastair Cook, CheltenhamManchester
Verified Purchase

Used this in my 2012 BMW which didn't have Bluetooth music. The 3.5m cable allowed me to hide the wires behind the dash perfectly. Sound quality is crystal clear.

Priya Sharma, BirminghamBristol
Verified Purchase

Great little device. Pairing was instant. My only slight gripe is I had to buy a cheap RCA adapter for my specific stereo, but once connected, it's brilliant.

Gareth Evans, CardiffBirmingham
Verified Purchase

Finally, a transmitter that doesn't drop the connection! I use it to send TV audio to my headphones at night. No noticeable lag at all.

Fiona MacLeod, GlasgowEdinburgh
Verified Purchase

Better than the 1Mii one I tried previously. The Bluetooth 5.4 range is impressive; I can walk into the kitchen without the music stuttering.

Simon Wright, NorwichLeeds
Verified Purchase

Solid build and does exactly what it says. It's powered by USB, so make sure you have a spare port nearby. The value for money is unbeatable.

David Jenkins, BristolSheffield
Verified Purchase

The 3.5m cable is what makes this. Most other brands give you a 20cm lead which is useless for a wall-mounted TV. Highly recommended.

Siobhan O'Reilly, BelfastGlasgow

Frequently Asked Questions