Audio-Technica ATH-ANC9 QuietPoint Active Noise-Cancelling Headphones Use active noise-cancelling technology to provide comfortable listening in areas with high ambient noise, delivering noise cancellation by up to 95% Audio-Technicas new Tri-Level Cancellation offers 3 noise-cancelling modes to customize performance for airplane, office, & study 40 mm drivers for crystal-clear high-fidelity audio reproduction Luxurious memory foam padding on headband and earcups Audio functions (in passive mode) even without the battery Included in-line microphone has an omnidirectional pickup pattern and it is designed for crisp intelligibility, so your voice will be clearly transmitted without having to speak directly into the mic Fold-flat designed with included hard case, battery, adapters & 2 cables (1 with inline control/mic)