Renaming the “OK Google” voice command I have several Android devices: I would like to have a different voice command for each device to turn on the voice search. Is there any way to rename the voice command “OK Google”?

I use Android 4.4.2 on each device.
The Application Open Mic+ is the only way to do this that I've found so far. It's available for free on the Play Store. The "hotword" is one of its settings.

Open Mic+