Virtual control device in use.
The Virtual Control Device is actually a pair of devices conceived by Jadzia Dax that is composed of a transmitter and a receiver. Each device is worn by an individual and allows the individual wearing the receiver to physically control the movements of the individual wearing the transmitter from a remote location. The receiver has the same point-of-view as the transmitter, allowing accurate control. However, control is limited to the physical limits and stamina of the individual wearing the transmitter. The device uses an optronic relay.
In 2373, Quark and Worf used such a device. Worf was helping Quark court Grilka, but as often happens in Klingon culture, Quark was challenged to a battle to the death by Grilka's guard, Thopak. Knowing Quark could not defeat Thopak, Worf agreed to help Quark fight by controlling his movements in battle using the virtual control device. Quark commented that it made him feel "like a puppet." (DS9: "Looking for par'Mach in All the Wrong Places")
- It is not known whether this device can work outside of a Holosuite or not.