ZAGG Buds for iPhones - Silver/Gray Premium length and tangle-free cord - Multiple sliders for better cord management Rich and responsive sound from superior speakers Multiple earbud adapters for all ear sizes Speaker diameter of 10mm - Frequency response of 20Hz to 20kHz - Impedance of 16 Ohms - Max input power of 10mW Cable length of 54 inches - Plug type of 3.5mm - Sensitivity of 94dB +/-3dB SPL/mW