J-EARLE Active Noise-Canceling Headphones Hi-Fi Stereo Wired Over-Ear Headphones with Microphone for all 3.5mm Jack Devices (Black) ACTIVE NOISE-CANCELLING TECHNOLOGY Reduces most of surrounding noise for work, travel, and anywhere in between by turning on the ANC mode. Advanced active noise reduction technology quells airplane cabin noise, city traffic or a busy office, makes you focus on what you want to hear,enjoy your music, movies and videos. The noise cancellation function can work well both in wired and wireless mode. Excellent Audio Performance J-EARLE Active Noise-Canceling Headphones feature large-aperture 40 mm drivers with neodymium magnet systems for impactful bass, extended treble and higher fidelity. Designed for use with in-flight entertainment systems and other audio systems. The goal that provide Customers with better sound quality, is our constant pursuit. CONVENIENT CARRYING CASEFeaturing folding ear cups that also swivel up to a 90 angle for quick adjusting, our portable wired headphones have been designed to meet the demanding needs of travelers, busy students, commuters & more. The portable suitcase has a zipper design that allows you to store headphones, cables, or other accessories, and you can protect them in your backpack or your suitcase. COMFORTABLE DESIGN J-EARLE Closed over ear headphones are lightweight yet durable & easy to travel with. Superior comfortable and good air permeability protein over-ear pads, muti-points headbeam, acord with human body engineering specification can reduce hearing impairment and heat sweat. Adjustable stainless steel slider allows you to freely find the perfect match and provide excellent durability. BATTERY LIFE Earphone AAA battery lasts for days and powers both the sound proof feature. Plug the headphones in direct using the 3.5mm wired aux in cable and continue to use even if power is depleted. Don't need to worry the power shortage problem on the long travel.