COLOUD - The Boom is a rough and ready headphone designed to deliver your daily dose of music. Outside noise stays out thanks to the Boom"s closed construction, while minimal parts mean less weight on your head. The Boom"s sturdy frame is crafted to withstand the pressures of everyday listening and the Zound Lasso, together with the flat cable, protects against tangles for hassle-free transport. Transitions are an assortment that takes a tonal approach to color, with each combination made up of the same color family in different shades for a more uniform color effect. Robust and streamlined triangular designDesigned with a 3D Ergonomics concept to follow human head for comfortabilityTPE Flat cableEquipped with Mic3 technology that allows you to pick/drop calls, play/pause and next/previous sound tracksTangle Free system with a patent-pending Zound Lasso pliable plug that bends 180 degrees to hold your cable in place Technical SpecificationsDriver: 40mm dynamic Sensitivity: 100mV @ 1kHz = 101dB SPLImpedance: 32 ohm Frequency Range: 20Hz ~ 20kHzStandard 3.5mm plugMicrophone: Unidirectional Electret