The JBL T110 are in-ear headphones designed to deliver reliable audio fidelity and long-wearing comfort for musicians, travelers, and office workers. Lightweight and compact, they feature 9mm dynamic drivers tuned for a frequency response of 20 Hz to 20 kHz with JBL's Pure Bass sound emphasizing deep low end. The tangle-free flat cable incorporates an in-line, one-button remote and a convenient built-in microphone. The 3.5mm mini-plug ensures compatibility with most mobile devices, computers, and headphone amplifiers. Optimize the fit and seal of the headphones via three pairs of included eartips