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
Compact black Bluetooth adapter with OLED screen, 3.5mm plug, 11.8 by 3.18 by 1.25 inches

Avantree Voyager BTTC-228-BLK Bluetooth 5.4 Adapter with OLED Display

SKU CH-7PDZ-T45F4

A Bluetooth 5.4 adapter with an OLED display that plugs into 3.5 mm AUX ports on planes, gym machines or PCs to stream audio wirelessly to headphones

  • Channels1
  • ConnectorsAuxiliary
  • Remote Controlfalse
  • Dimensions & Weight11.8 in x 3.18 in x 1.25 in
  • Bluetooth 5.4 enables Auracast broadcast sharing
  • OLED screen shows pairing status and volume
  • Plugs into 3.5 mm AUX on planes and gyms
  • Qualcomm chipset supports aptX Adaptive low latency
  • Designed for travel with compact 11.8 in form

Portable Bluetooth Audio Adapter

The Avantree Voyager BTTC-228-BLK is a Bluetooth 5.4 transmitter that plugs into any 3.5 mm auxiliary output. It is designed for travellers who want wireless headphone audio from airplane seat-back systems, gym equipment or laptop ports. A built-in OLED screen shows pairing status, volume level and connected device names at a glance.

Travel-Focused Listeners Only

This adapter suits flyers and commuters who need a single wireless link from a wired source. It does not support dual-headphone streaming in classic mode, so pairs wanting simultaneous listening must use Auracast-compatible headsets. Buyers who need hearing-aid pairing, direct phone or tablet connection, TV audio without a 3.5 mm jack, or musical-instrument monitoring should choose a different product.

Bluetooth 5.4 With Auracast Broadcast

The decisive specification is Bluetooth 5.4 with Qualcomm aptX Adaptive and Auracast broadcast capability. Low-latency, high-quality audio requires headphones that support aptX Adaptive or aptX-HD. Classic Bluetooth connects one headset only, while Auracast mode allows one-to-many streaming to compatible receivers.

Highlights

  • Bluetooth 5.4 enables Auracast broadcast sharing
  • OLED screen shows pairing status and volume
  • Plugs into 3.5 mm AUX on planes and gyms
  • Qualcomm chipset supports aptX Adaptive low latency
  • Designed for travel with compact 11.8 in form

Specifications

BrandAvantree
ModelVoyager
Part NumberBTTC-228-BLK
Channels1
ConnectorsAuxiliary
Remote Controlfalse
Dimensions & Weight11.8 in x 3.18 in x 1.25 in

Questions about this item

What Bluetooth version does the Voyager BTTC-228-BLK use and what does that mean for audio quality?

It uses Bluetooth 5.4 with Qualcomm aptX Adaptive and aptX-HD support. Low latency and high audio quality require headphones that also support those codecs.

What physical connection does the adapter need to work with an airplane entertainment system?

It plugs into a 3.5mm AUX or dual-prong jack on the seat-back system. The unit measures 11.8 in x 3.18 in x 1.25 in.

How do I switch between classic Bluetooth and Auracast mode on the device?

Use the built-in OLED display and button controls to select the mode. Classic Bluetooth pairs one headset; Auracast broadcasts to multiple compatible receivers.

Also in this aisle

People compared these

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