What is this thing?

[ETN]

Right behind driver's sun visor. A month in, and just noticed. Bluetooth mic?

 

[MidTNTremor]

It is either a mic or one of the 18 B&O unleashed speakers.

 

[Erlo22]

My mercedes had 2 of these, one over the driver visor and one over the passenger visor. When I asked they said it was part of the A/C climate control system for the dual zone temp. I'm going to guess it's the same, however I've only seen one over the driver side and mine does have the dual zone temp option.

 

[Tremor14]

It's a mic for when you talk to Sync.

 

[ETN]

Thanks all.