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A Warlock's helmet bristles with tiny, precise sensors - each one attuned to an individual nerve in the brain.
― In-game description

Logic Singer IV is a basic helmet which can be equipped by Warlocks.[1] It can be dismantled to generate Glimmer. It can also be transferred between characters using the Vault.


Logic Singer IV can be retrieved from one of the following activities/vendors:

Unknown source icon Unknown
This item can drop in situationally dependent ways.
Quest source icon Quest
This item can drop as a Quest reward.
Crucible source icon Crucible
This item can drop as a Crucible match reward.
Strike source icon Strike
This item can drop as a Strike reward. Exotic items can only drop from the most challenging Strike playlist.


Logic Singer IV can also be upgraded with the following perks:


  1. "Logic Singer IV (Basic) API call". Retrieved 09 September 2015.