I had the oneremote,  but it is a tecnisat with a build in chip for b&o remote, I never got it to work beo4, beo5000 or beo5, it also requires some special setup when used with bm4500, yes i had the one with wifi an bt and app,   so i sold it and bought the 10ir from tecnisat via aux, No issues,    

Of course maybe i just got lost in setting it up properly

 

Ol