I see... So this UE 4 Pro is made for some lower-end market, competing with hearyourself, livewires, and others budget-friendly custom IEM makers. Can't wait for the comparison review between these IEMs...
UE 4 Pro demos? I thought each custom IEM can only be used with only one person (the owner itself). So I reckon that UE made the universal fit version of UE 4 Pro?