Tuning crystals are the control mechanism for much of the advanced technology of the setting. Although they are ubiquitous, they are hardly universal- a device that is simpler to operate by other means will not necessarily use voiced controls. Most projectile weapons for instance, use simple triggers or buttons. But most devices one would wish to use without the use of hands can be controlled by voice.
- How are the crystals harvested?
- Crystals must be cut by skilled craftspersons to be useful in technology.