Journey Astra Audio AdapterA Bluetooth audio adapter that plugs into standard (3. 5mm) headphone ports on in flight entertainment systems, gym treadmills, and gaming consoles, enabling you to enjoy your favourite wired audio entertainment through wireless headphones. ASTRA swaps from transmitter (TX) to receiver (RX) in a switch flick, too, so you can wirelessly play your phones music, podcasts, and more through any speakers with a headphone port. Bring your old stereo,