OVERVIEW: Uncompromising sound. Unmatchable style Step up to the superior sound and styling of JBL Synchros E30. Enhanced frequency response, ergonomically-engineered fit and smartphone-friendly features keep you plugged in and mobile. JBL represents the very essence of quality sound reproduction, and the new E-series headphones are no exception. Engineered with passion and loaded with features that enhance your lifestyle, these smartphone-friendly headphones feature 40mm drivers with PureBass...