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The Vespidsvespid' s technology is based around exotic crystals only found on the bottom of the floating islands of their homeworld, which they manipulate with the ultrasonic sounds manipulated from their wings.{{Fn|2}} At the time of their discovery by the T'au, the Vespid vespid had not yet developed spaceflight , but did possess weapons of mass destruction that made total wars between nations undesirable.{{Fn|1}}

From the T'au, they have gained armour and weaponry, and a [[Vespid Communion Helmvespid communion helm]] that enables them to more freely communicate with other races (as their own language is extremely complex and for the most part inimitable). Their weapons are a mixture of T'au technology and Vespid vespid resources, which enables them to act as specialist specialists against heavily armoured troops (specifically the Space Marinesspace marines, whom the T'au have always had difficulty in fighting).{{Fn|1}}{{Fn|2}}

The [[Neutron Blasterneutron blaster]]s the Vespid Stingwings vespid stingwings carry are a unique blending blend of [[T'au]] technology and the unstable radioactive crystals that the Vespids vespid mine. The energy harnessed from the crystal allows the weapon to strip atoms off the target. Due to the Vespidsvespid' s wings creating different harmonic resonances within the crystal, they are the only creatures able to wield Neutron Weapons effectively.{{Fn|1}}{{Fn|2}} Recently, the T'au have developed a number of newer [[Neutron Weaponneutron weapon]]s , such as the [[Neutron Stingneutron sting]], [[Neutron Rail Rifleneutron rail rifle]], [[Neutron Grenade Launcherneutron grenade launcher]], and [[Neutron Grenadeneutron grenade]].{{Fn|13}}

In terms of their own technology, the closest thing that has so far been recognised is their own wings. It is unclear yet just how their wings are used, whether they are flexible enough to oscillate fast enough or are capable of ejecting fluid or plasma to produce lift, is yet to be ascertained. In any case, they are capable of flight and are often deployed onto the battle field from the air, enabling them to join the battle in the most suitable location.{{Fn|2}} The Vespids vespid have stalactite-like [[Nest Vesselnest vessel]] spacecraft, which they used as auxiliaries in the [[Farsight Expedition]]'s [[Grand Reclamation Fleet]].{{Fn|6}}