EP 20 EarpieceThis light hands-free also allows you to take calls with its in-built microphone. The compact and lightweight design of the headphone renders them portable and convenient to use. A host of user-friendly features, excellent styling, and amazing sound clarity gives the  handsfree headphones an edge above the rest. Innovatively designed, the in-ear headphone features dynamic 9mm drivers and a frequency range of 20 to 20000 Hz to give you optimum sound performance across the spectrum. It also offers excellent sound isolation by minimizing external sound. With a 32ohm impedance, the in-ear headphones allow you to enjoy music from several devices,