The JBL Synchros E40BT On-Ear Bluetooth Headphones offer the signature JBL sound, plus Bluetooth and other advanced features at an affordable price. Boasting 40mm drivers and JBL PureBass performance, the Synchros effortlessly deliver premium sound. Audio transmitted wirelessly over Bluetooth from your device combined with the ear cup-based microphone allows hands-free listening and calling. JBL’s proprietary Share Me technology further enhances wireless connectivity by allowing you to share your content with another set of compatible headphones. Music playback and phone buttons are conveniently integrated into the comfortable and stylish ear cups for easy and handy control. The soft leatherette ear cups, combined with the built-in USB rechargeable battery that provides 16 hours of playback, means you’ll never have to put these headphones down!