Audio-Technica ATHANC7 Noise-cancelling Headphones (Discontinued by Manufacturer) ATH-ANC7 QuietPoint noise-cancelling headphones feature ANC circuitry that effectively reduces environmental noise by up to 85% Lightweight, compact design is ideal for travel Use for MP3, CD, DVD & in-flight entertainment systems: remove detachable cable for noise-cancelling function without audio Closed-back headphones feature large-aperture 40 mm drivers with neodymium magnet systems for deeper bass, extended treble and higher fidelity Audio functions (in passive mode) even without the battery ATH-ANC7 QuietPoint active noise-cancelling headphones effectively reduces environmental noise by up to 85% with or without audio Ideal for travel and use with MP3, CD, DVD and in-flight entertainment systems Provides superior audio quality with 40mm drivers with neodymium magnet systems in each earpiece for deeper bass, extended treble and higher fidelity Fully integrated active noise-cancelling technology - no external modules needed Includes a detachable cable (remove for noise-cancelling function without audio) with 3.5 mm mini-plugs Closed-back headphones feature large-aperture 40 mm drivers with neodymium magnet systems for deeper bass, extended treble and higher fidelity Lightweight, compact design is ideal for travel ATH-ANC7 QuietPoint noise-cancelling headphones feature ANC circuitry that effectively reduces environmental noise by up to 85% Use for MP3, CD, DVD & in-flight entertainment systems: remove detachable cable for noise-cancelling function without audio Audio functions (in passive mode) even without the battery