I'm considering purchasing a Bluetooth portable speaker that has a built-in omnidirectional microphone.
The advertising for the product says that the microphone can be used to "make calls" from a mobile device.
However, I can't find out from the support pages if the microphone is "always on", or if it's just used for Call Audio Routing – as in iOS's
Settings > General > Accessibility > Call Audio Routing.
My aim, ultimately, is to use the Bluetooth speaker for playing audio from my iOS device, but also to use it as an always-on microphone that can accept "Hey Siri" voice detection commands.
Basically – an "Amazon Echo" device, but consisting of an iPad + Bluetooth speaker instead.
Is "Hey Siri" detection normally possible with mic-equipped Bluetooth speakers?
Specific case: I'm looking at a Bang & Olufsen Beoplay A1.