Enjoy beautiful music in blissful silence without the hassle of tangled cords with Denon's Globe Cruiser™ AH-GC20 wireless headphones with active noise cancellation. Featuring Bluetooth 4.0 Dual Mode wireless technologies including Advanced Audio Coding (AAC), the AH-GC20 over-ear headphones eliminate the need for a cable, communicating wirelessly with your smartphone, tablet and portable music player.Featuring elegant and contemporary European styling, the AH-GC20 headphones deliver superb sound quality along with exceptional noise cancellation, reducing ambient noise by an astonishing 99%. Equipped with the latest aptX™ wireless technologies, including aptX Low Latency and cVc (Clear Voice Capture), the AH-GC20 headphones feature soft memory foam earpads that provide a supremely comfortable fit along with additional passive noise reduction. Playback time: 20hrs. Includes leather carrying case, airline cable adapter, 3.5mm Aux Cable, and MIcro USB Charging Cable.