Bask your ears in the bold JBL E50BTBLK sound: large 50mm drivers with PureBass Performance envelop your ears, delivering an expansive soundstage with clarity and precision. Bluetooth® technology allows wireless connectivity with your smart devices, with single-button access to hands-free, clear calling thanks to JBL echo-cancellation technology Integrated ShareMe™ lets you take your music social, allowing you to stream music wirelessly to another ShareMe™ equipped headphone. And a built-in rechargeable Li-ion battery keeps the sound going with 18 hours of uninterrupted play time. The ergonomic headband and 3-D hinges provide for long lasting comfort. Soft, leatherette ear cups cradle your ears for all-day comfort while providing a heightened level of passive noise reduction. The E50BT’s sleek design and five unique color combinations make a visual statement that’s as striking its sound.