The GoPro HERO5 Session and GoPro HERO5 Black have only a few voice commands.
Most are documented on the Black by pulling down from the top of the screen, choosing Preferences->List of Commands. We did find a couple that weren't documented. Here is the complete list as of the 1.20 release.
Turn On - with Remo?
Take a Photo
Shoot Burst - Works in any mode
That was Sick - Highlights (doesn't need GoPro first)
Oh Shit! (doesn't need GoPro first)
We do have GoPro HERO5s for sale locally or if you are a skydiver. Sorry, due to fraud we only sell to people we can confirm their identity. Contact us on Facebook!