I have no idea what a Fiio BTR7 is.
But I bought one, and it's changing my life.
Discussion
Is it a music player? How good it is?
Portable Bluetooth DAC/amp + more. Really nice for using my wired headphones on Bluetooth devices.
It all starts with DACs, and ends in endless wires connected to step sequencers, pedals and synths.
Thought it was a peptide.