These headphones come with large 40mm driver units that produce a great bass, and clear mid ranges, with highs that are distortion free. The crystal-clear high-fidelity audio reproduction carries forward Audio Technica's legacy of sonic excellence.Customizable Active Noise Cancellation
The Audio-Technica - ANC9's noise cancellation feature reduces upto an amazing 95% of background noise. Audio Technica's Tri-Level Cancellation has various levels, tailored to your needs. Mode 1, ideal for use on airplanes, trains and buses, applies maximum noise cancellation to low frequencies. Mode 2, designed especially for use in noisy offices or crowded places, targets the mid-range frequencies, while Mode 3 creates a pristine, peaceful environment ideal for study.Luxurious Memory Foam Earpads
The ANC9 comes with a set of luxurious memory foam earpads that offer superior comfort and noise isolation, even when used offline.Detachable Cables With In-Line Microphone
The ATH-ANC9 headphones offer a cable with an inline microphone and remote for answering calls and controlling music. The mic and controller support select products, such as iPhones, iPads, and many iPods. The microphone also has an omnidirectional pickup pattern that has been designed for crisp intelligibility, so your voice will be clearly transmitted without having to speak directly into the mic.Additional Accessories
A great benefit of the earphones is the airline adapter that allows you to easily connect with the in-flight entertainment and enjoy it with leisure. Also included is the hard case, a battery, and 2 cables (1 with inline control/mic).