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...8's sonic-soundwave-emitter-projecto-gun, able to broadcast sound at lethal frequencies. It also gives a great biogel massage.Doctor Dala

The sonic emitter - robo-scorpion is a weapon in the Fallout: New Vegas add-on Old World Blues.


The sonic emitter - robo-scorpion is an Energy Weapons pistol with bonus damage against robots and power armor wearers, as well as a unique "critical strike explosion" effect. The projectile fired from this modulation travels noticeably slower than other modulations and it uses 3 energy cells per shot as opposed to 1 or 2 with the other variations. This sonic emitter modulation has a yellow oscilloscope. It also has a slight firing delay.

As a one-handed Energy Weapon, the sonic emitter - robo-scorpion is affected by The Professional perk, and counts as an improved holdout weapon.

When scoring a Critical Hit, a large explosion occurs.


The sonic emitter - robo-scorpion can fire a total of about 495 times using standard cells, the equivalent of 62 reloads, from full condition before breaking.

Ammunition typeDurability
Over charge32942
Max charge19525



Weapon name (current weapon is highlighted)- Weapon name (melee or unarmed)Attacks in V.A.T.S.- Attacks in V.A.T.S.
Weapon name (current weapon is highlighted)- Weapon name (gun, energy or explosive)Action point cost- Action point cost
Damage per attack (damage per projectile)- Damage per attack (damage per projectile)Damage per action point- Damage per action point
Damage per second- Damage per secondWeapon spread- Weapon spread
Area of effect damage- Area of effect damageMagazine capacity (shots per reload)- Magazine capacity (shots per reload)
Effect damage & duration- Effect damage & durationDurability (number of attacks before breaking)- Durability (number of attacks before breaking)
Bonus effects- Bonus effectsWeight- Weight
Attacks per second- Attacks per secondValue in caps- Value in caps
Critical chance % multiplier- Critical chance % multiplierValue to weight ratio- Value to weight ratio
Critical damage- Critical damageSkill required- Skill required
Critical effect damage & duration- Critical effect damage & durationStrength required- Strength required
With all mods attached- With all mods attached
Weapon name (current weapon is highlighted)Damage per attack (damage per projectile)Damage per secondBonus effectsAttacks per secondCritical Chance % multiplierCritical damageCritical effect damage and durationAction Point costDamage per action pointWeapon spreadMagazine capacity (shots per reload)Durability (number of attacks before breaking)WeightValue in capsValue to weight ratioSkill requiredStrength required
Sonic emitter - Gabriel's bark Old World Blues (add-on)55
56.9+20 EMP1.03x125Knockback301.80.124(12)495235001750502
Sonic emitter - opera singer Old World Blues (add-on)55
56.9+20 EMP1.03x125Dismember301.80.124495235001750502
Sonic emitter - revelation Old World Blues (add-on)31
32.1+20 EMP1.03x118Paralyze/10s3010.124495235001750502
Sonic emitter - robo-scorpion Old World Blues (add-on)65
67.2+20 EMP1.03x130+100Explosion302.20.124(8)495235001750752
Sonic emitter - tarantula Old World Blues (add-on)60
62.1+20 EMP1.03x130+2Fire/5s3020.124(8)495235001750752


The holodisk for the modification, Audio Sample - Mobius' Robo-scorpion, is found in the Forbidden Zone dome adjacent to the door leading to Doctor Mobius on a table.


  • As with all sonic emitter modulations, it is necessary to install Blind Diode Jefferson's personality chip before this remodulation can be applied to the sonic emitter.
  • All cyberdogs are affected by the additional EMP damage done by this weapon.