Yes I noticed it, Hiby explained in some place that it was intentional and I think it may even be good for ER4SR, I'm really suspicious about that...
My portable setup is Ety ER4SR with AK XB10 (LG G6 & Aptx HD) and GR07C with my phone sometimes (I can't bring myself to sell GR07 as sometimes I...
Hiby R3 has Tidal Streaming only, afaik, for offline you need android OS.
Simplicity is the ultimate sophistication.
Separate names with a comma.