The whistle isactually a substitute for the voice commands he has learned at home; in thefield it is more
valuable than the voice because it carries farther and withmore authority.
Not exact matches
For both of us, the device is much more
valuable as a writing technology
than a
voice technology.
In my experience such
voices are more
valuable than they may seem because they serve as a guidepost and indeed an informal check and balance system.