Google voice not getting command through Bluetooth headphone

[Android Central Question]

I have android 6.0and Bluetooth headphone my Google voice not getting command through Bluetooth headphone?
And I also not able to open google voice through pressing button of Bluetooth headphone.
And if I opened Google voice manually by touching finger then its not getting command through Bluetooth headphone.
Plz help.

 

[B. Diddy]

Welcome to Android Central! When you say "Google voice," are you talking about the Google Voice app (i.e., their telephony service) or Google Assistant (i.e., "Ok Google")? If the latter, then open your Google app, tap Menu>Settings>Voice, and make sure Bluetooth Headset is turned on. Also, in the Voice menu, tap Hands-free and make sure For Bluetooth Devices is turned on there as well.