Ideal for: Loud noisy environments planes trains buses work or dorms.Digital Equalizer Delivers ideal frequency response and high-quality music reproduction. A high S N ratio is achieved through digital signal processing.Comfort Lightweight Design for extremely comfortable wearing with pressure

Ideal for: Loud noisy environments planes trains buses work or dorms.Digital Equalizer Delivers ideal frequency response and high-quality music reproduction. A high S N ratio is achieved through digital signal processing.Comfort Lightweight Design for extremely comfortable wearing with pressure relieving urethane cushions in the earpad.A Unique feature is the built-in monitor function button that allows you to hear surrounding sound. Listen to announcements from flight attendants bus drivers train conductors or any external sound without the need of ever taking the headphones off.Artificial Intelligence (AI) Noise canceling with automatic selection of optimal noise canceling mode based on intelligent analysis of environmental ambient noise.Internal Lithium-ion battery for approx. 16 hours of use in addition to normal AA batteries which would allow for a joint 28 hours of use.Product s:20 dB noise suppression16 Hour rechargeable Battery2 AA Battery Back-UpBattery Indicator100 mW Power Handling Capacity40mm Dynamic Closed Dome-type Driver5 - 24000Hz Frequency Response40 ohms at 1kHz ImpedanceON OFF switch on EarCup102 dB mW Sensitivity3 distinct noise-canceling modes for use in three acoustically different environments (Airplane Bus office) Neodymium MagnetGold-plated L-shaped stereo mini plugLong 5 ft. Single-sided cordAdjustable Swivel HeadbandPressure Relieving Urethane Cushioned EarpadsWeight: 6.9 ozIn the BoxHeadphonesAirplane Plug Adapter(2)AA BatteriesConnecting cord x3 (.5m stereo mini 1.5 type stereo mini cord with battery case)Startup guideAC Power adaptorUnimatch plug adapterPremium Features 1) The innovative MDRNC500-D headphones use digital technology to more accurately reduce stress-inducing noise from planes trains and buses while providing the highest quality audio sound. A built-in Lithium-ion rechargeable battery is included as well as two AA batteries for extra-long usage. Plus in an independent blind test frequent business travelers rated Sony s MDRNC500-D headphones #1 twice as often as other leading competitors in overall noise cancellation and audio quality. 2) Noise canceling technology reduces 98.2% ambient noise and provides a quieter environment to enhance audio entertainment. An inside microphone on each earpiece work with an electronic circuitry to create an opposite sound wave to reduce wave. Ambient sound is reduced by synthesizing with a sound in opposite phase produced by the noise canceling circuit. 3) Comfort Lightweight Design for extremely comfortable wearing with pressure relieving urethane cushions in the earpad. 4) Internal Lithium-ion battery for approx. 16 hours of use in addition to normal AA batteries which would allow for a joint 28 hours of use. 5) Digital Equalizer Delivers ideal frequency response and high-quality music reproduction. A high S N ratio is achieved through digital signal processing. - Artificial Intelligence (AI) Noise canceling with automatic selection of optimal noise canceling mode based on intelligent analysis of environmental ambient noise. - 3 distinct noise-canceling modes for use in three acoustically different environments (Airplane Bus office)