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According to Audio-Technica, the ATH-ANC3 headphones employs patented technology that detects environmental noise via miniature microphones incorporated in each ear bud. The immediate proximity between microphone and in-ear speaker driver provides the key to producing a close to identical out-of-phase signal that cancels an extremely high percentage of external noise across a very wide frequency range.
Audio-Technica also ensures a customised fit with three sizes of ear tips (small, medium and large) and a monitor switch on the control unit so that important outside announcements and conversations can be heard.
