The phasors are relatively small and are operated by a trigger, shooting infrared light which is detected by other player's sensors, and base devices, and also emit a visible dot of red light roughly to where the phasor is aimed. The phasors are connected to the packs by a cable, and have sensors on them, on the top, like the packs do, which allow the player to receive return-fire, even when the pack sensors are hidden. The phasors also have a touch-sensitive sensor underneath them, near the front of the phasor, which a player must place their hand on while playing, otherwise will be unable to shoot. This ensures that players hold their phasors with both hands and do not carelessly drop them. However some "cheats" will take along items like Blu-Tac to cover the sensor, enabling one-handed shots, and many experienced players can cover the sensor and pull the trigger with the same hand. This is widely considered cheating and some newer packs seem to be less affected by these "cheats".