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Jaller tried using his mask to dodge the chunks, only to find that he was suddenly hearing sounds bouncing off nearby objects.
— Narration, BIONICLE Legends 7: Prisoners of the Pit
Arthron
Arthron1
Toa Mahri Jaller's altered Great Arthron
Mask of Sonar
Power(s)Let user use echolocation
KanokaUnknown
Notable Wearer(s)Jaller
PronunciationARE-thronn

The Kanohi Arthron was the Mask of Sonar. It gave its user the power to sense the movements and positions of targets through echolocation. This mask power could detect beings, but could not identify details about the target. The powers of this mask also allowed its user to perceive Huna and Volitak users and see through illusions. An Arthron is always on at a low level.

Example Usage[]

Great: In BIONICLE Legends 8: Downfall, Toa Jaller's Arthron detected the Piraka in advance within the Stone Cord, but couldn't clearly see them until the villains moved closer to attack.

Known Wearers[]

Great[]

Kanohi
Legendary Kanohi
VahiIgnikaMask of Creation
Great/Noble Kanohi
Toa Mata HauKaukauMiruKakamaPakariAkaku (AkiRua)
Toa Metru HunaRauMahikiKomauRuruMatatu
Toa Inika CalixEldaSuletuSanokKadinIden
Toa Mahri ArthronFaxonZatthGaraiVolitakTryna
Toa Hagah PehkuiMask of ClairvoyanceKualsiMask of EmulationMask of GrowthMask of Rahi Control
Karda Nui Makuta JutlinAvsaFelnasMohtrekShelekCrast
Other Kanohi Infected KanohiGolden KanohiCopper Mask of VictoryMask of Elemental Energy
AvohkiiKraahkanMask of Light and ShadowKirilOlisiRodeOlmak
Mask of IntangibilityMask of PossibilitiesMask of Psychometry
Mask of MutationMask of CharismaMask of HealingMask of Scavenging
Mask of AdaptationMask of AgingMask of Biomechanics
Mask of ConjuringMask of FusionMask of Incomprehension
Mask of ReboundingMask of Sensory AptitudeMask of Undeath
Kanohi Nuva
Toa Nuva Hau NuvaKaukau NuvaMiru NuvaKakama NuvaPakari NuvaAkaku Nuva (Aki NuvaRua Nuva)
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