EFOSHM Active Battery Noise Canceling Headphones Over-ear Headsets Wired earphone for iphone,Samsung,LG,IOS,Andorid Phones,Tablets,Portable Music Players,Laptop PC with Carry Case Active noise cancelling technology suppresses background interruptions by up to 85%,allowing you to enjoy your music at a comfortable and safe volume. Ultra high-quality,dynamic 40mm speaker drivers bring your music to life. Adjustable headband and fully-padded cans allowe easy listening for extended periods. Designed for use with in-flight entertainment systems and other audio systems. Gold-plated 3.5mm connections.