Looks like we could simply plug that receiver into an iPhone DAC/amp like the ones from VentureCraft
Then stream something from a variety of devices via Bluetooth 3.0 to the other side. Somehow they went for SBC codec instead of the better Apt-X and that just turned me off for sure.
It's gonna cost 3,280 yen which is more than 30 bucks. Do you guys see better ways to use that?