Geordi La Forge, connected to an interface probe, looking at his reflection.
An interface probe is a type of Federation probe designed to be controlled remotely via direct connection to a person's brain and respond to the movements that the person intends to make. The person controlling the probe wears an interface suit which provides tactile sensations in order to feel as if he or she is experiencing the same environment as the probe. The probe is configured with both tractor beams and phasers and transmits information via a focused particle beam.
Lt. Commander Geordi La Forge controlled an interface probe to virtually search the USS Raman for survivors when it became stranded in the atmosphere of Marijne VII. The interface was perfect for Geordi because his VISOR inputs allowed the probe to transmit information directly into his cerebral cortex. (TNG: "Interface")