Direct Answer

People wear headphones in court mainly for real-time language interpretation or assistive listening. The headset receives a direct audio feed (often infrared) so participants hear proceedings clearly without disrupting the courtroom. Source citations follow in the paragraph below.

Verified against official court technology explanations and ADA “effective communication” guidance: federal court headset explanation, Fairfax court technology PDF, ADA effective communication.

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Confidence Score: 93%
Basis: 4 high-quality sources (2 government, 1 federal court page, 1 professional interpreter association) with consistent explanations.
Human-Reviewed: Courtroom Accessibility & Interpretation Checklist: translation + assistive listening included; ADA guidance cited; IR headset use verified; no legal advice.