Haven’t seen very many mechanical keyboards with Bluetooth. Part of the reason I got a Das Keyboard was for the big volume wheel and dedicated music controls but it’s not Bluetooth so can’t be used with phone easily. I bought a Logitech K810 for its ability to switch between PC and phone easily but it isn’t mechanical and doesn’t have number pad (k780 does have num pad). You might have to compromise or hack something together yourself or buy a Bluetooth adapter. Let us know if you happen to find something though.