3.5 mm headset: Accessory specification

Scope and location

Exact named pinout variant only; not capability or compatibility approval.

Mechanical table (CTIA LRGM / OMTP LRMG) and Reference headset test circuits, Figure 1

Open the original source

Inspected

2026-10-18

Access

public page

Recorded AI-assisted source inspection; not independent human approval or hardware testing.

Source scope and unresolved evidence are preserved in the engineering variant.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.