We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small black Bluetooth 4.2 audio adapter with 3.5mm AUX cable

SMUGDESK

SMUGDESK 2-in-1 Bluetooth 4.2 Audio Transmitter Receiver Adapter 3.5mm AUX

SKU CH-38TX-DXPG1

Wireless audio adapter adds Bluetooth 4.2 to any 3.5 mm device for streaming or receiving

  • Dual transmitter and receiver modes add wireless flexibility
  • Bluetooth 4.2 chip cuts audio lag for smooth playback
  • 5mm AUX jack fits most wired speakers and car stereos
  • Pocket-sized body works straight out of the box
  • Built-in rechargeable battery powers hours of indoor or vehicle use

Dual-Mode Bluetooth 4.2 Adapter

This 2-in-1 device adds wireless audio to wired systems by switching between transmitter and receiver modes. It upgrades car stereos, TVs, desktop speakers, and amplifiers to Bluetooth connectivity without internal modification. The compact dongle suits drivers wanting hands-free streaming and home users connecting wireless headphones to non-Bluetooth sources.

Check Your Ports and Power

Verify the target device has a standard 3.5mm AUX input or output jack for the included cable. Ensure a USB power source is available for charging the built-in lithium battery before extended use. Confirm your phone, tablet, laptop, or headphones support Bluetooth 4.2 or earlier for pairing compatibility.

What the Bundle Enables

The attached 3.5mm audio cable provides immediate wired connection to AUX ports without extra purchases. The integrated rechargeable battery removes the need for disposable cells and allows portable operation in vehicles or away from outlets. USB charging lets you top up the adapter from car chargers, power banks, or computer ports.

Highlights

  • Dual transmitter and receiver modes add wireless flexibility
  • Bluetooth 4.2 chip cuts audio lag for smooth playback
  • 5mm AUX jack fits most wired speakers and car stereos
  • Pocket-sized body works straight out of the box
  • Built-in rechargeable battery powers hours of indoor or vehicle use

Specifications

No published specifications for this item yet.

Questions about this item

Does the adapter come with a 3.5 mm cable or do I need to buy one?

A durable attached 3.5 mm audio cable is included, so no separate cable purchase is required.

Should I choose transmitter or receiver mode for my car stereo?

Use receiver mode when plugging into a car AUX port to stream music from a phone or tablet.

Will Bluetooth 4.2 keep audio in sync when watching TV with wireless headphones?

The Bluetooth 4.2 chip reduces delay for smoother movie and music playback.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.