The ANC70 QuietPoint active noise-cancelling headphones are lightweight and compact to effectively reduce distracting background noise by up to 90%, while offering the superior audio quality that has made Audio-Technica a worldwide leader in electro-acoustic technology. Ideal for use with smartphones, tablets, laptops, and in-flight entertainment systems,. Reduces background noise by up to 90%. Powerful large-aperture 40 mm drivers with rare earth magnet systems for impactful bass, accurate midrange and extended treble. 1.2m cord length. 1.2m cord. Adjustable headband. 90% noise cancellation. 3.5mm jack . 40mm driver. Carry case. Batteries required 1 x AAA battery (included) . Manufacturers 2 year guarantee.