Tap your cheek to ask Siri a question with Bragi Dash update
 

The Bragi Dash wireless headphones are already incredibly smart and sophisticated, but this month's software update 2.2 makes them practically magical. Bragi OS 2.2 enables the MyTap beta, which will at first allow users to tap a cheek to activate Si...

https://www.engadget.com/2016/11/02/...eless-earbuds/