Monoprice 110152 Enhanced Bass Earphones with Built-In Microphone and Play/Pause Controls for Cellphones - Retail Packaging - Yellow These ported earphones feature a noise isolating design which means you hear your music (or phone call) and not all the noise of the outside world The low-end response is enhanced to provide a rich full bass experience that transcends the 10mm driver size In addition to outstanding sound quality These earphones can function as a hands-free earphone/microphone for your cell or smart phone