Question about FiiO BTR5

With a USB C cable and Lightning adapter, this should work - however, the codex in the BTR5 should then switch from AAC to LDAC, but it doesn't do this for me. You also have AAC without a cable with BT.

With the camera kit USB/Lightning adapter, the good piece becomes a pure DAC and also plays high resolution files with 24bit and 96khz. The sound is great. However, you have to switch off the charging function or the pairing will not work.