Blutooth interface module

Hello Jetis, even the DC-16 is already a 'State-of-the-Art' transmitter, some options are still missing.
I would like to have a Bluetooth interface module available for wireless connection with a laptop, tablet and possibly iPad/iPhone (incl. required app).
This would even enable visualization of telemetric data and voice output on mobile devices...

Do I wish also, at the moment I need for my Vario is an an external blutooth module. But it has an additional battery to be maintained