Canon

ECH-09 helmet

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ECH-09 helmet
Icon for the Echo Nine helmet.
Production overview

Manufacturer(s):

Cascade Stronghold Technologies[1]

Testing site(s):

Mars[1]

Type:

 

The ECH-09 helmet, also known as Echo Nine is a helmet used by the Orbital Drop Shock Troopers.

Overview[edit]

Design details[edit]

The ECH-09 helmet is compatible with the TAC/RS/WILLOW-SE attachment, a repackaged PZY-955SSA Willow sensor and data recorder used by Army and Navy special forces.[2]

Development history[edit]

The Echo Nine helmet was manufactured by Cascade Stronghold Technologies in their fallback facilities in the Sol system.[1]

Usage[edit]

The ECH-09 helmet first saw use with ODST reaction forces assigned with the defense of Mars in 2552.[1]

In-game information[edit]

Halo Infinite[edit]

The Echo Nine helmet made its debut in Halo Infinite during 2025's Spring Update, releasing with the Frontlines Operation as part of the operation's Premium Battle Pass. After the end of the Frontlines Operation, the helmet was released as part of the "Echo Nine" Bundle on the Legacy Operation on June 2025.

Helmet Manufacturer Lore Rarity Unlock Requirements
Icon for the Echo Nine helmet.
Echo Nine 		Cascade Stronghold Technologies Manufactured at Cascade's fallback facilities in the Sol system, the ECH-09 helmet first saw use with ODST reaction forces tasked with the last-stand defense of Mars in 2552. Legendary
  • Frontlines Pass level 35 (Premium)
  • Purchase the "Echo Nine" Armor Bundle from the Shop for 2,200 cR
Icon for the Echo Nine helmet's attachment.
TAC/RS/WILLOW-SE 		Chalybs Defense Solutions Repackaged PZY-955SSA sensor and data recorder issued to Army and Navy special forces. Legendary
  • Frontlines Pass level 38 (Premium)
  • Purchase the "Echo Nine" Armor Bundle from the Shop for 2,200 cR

Gallery[edit]

Main-Superintendent.png Browse more images in this article's gallery page.
  • HINF - Store icon - Echo Nine.png
  • A Spartan using the ECH-09 helmet.

    A Spartan using the ECH-09 helmet.

  • An ECH-09-clad Spartan with an M41D SPNKr.

    An ECH-09-clad Spartan with an M41D SPNKr.

List of appearances[edit]

Sources[edit]

  1. ^ a b c d Halo Infinite, Armor Customization: Echo Nine Helmet Description "Manufactured at Cascade's fallback facilities in the Sol system, the ECH-09 helmet first saw use with ODST reaction forces tasked with the last-stand defense of Mars in 2552."
  2. ^ Halo Infinite, Armor Customization: TAC/RS/WILLOW-SE Helmet attachment Description "Repackaged PZY-955SSA sensor and data recorder issued to Army and Navy special forces."

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