Unfortunately, high-end headphones these days often come with Bluetooth ... full circuit board to one wasn’t easy. [Daniel] managed to squeeze the PCB from a Schosche wireless audio transmitter ...

while simplifying the board design process. The integrated impedance-matching circuit technology presented by Renesas at ISSCC 2015 enabled compact and low-cost Bluetooth LE products that required no ...

A Bluetooth adapter/transmitter is the way to go ... I don’t know if it has a booster circuit of sorts. But with the media device and headset at the same settings as for the other two adapters there ...