Drumeo EarDrums Black Edition, In-Ear headphones for drummers, 2 dynamic drivers + 1 balanced armature drivers, frequency range: 18HZ - 22KHZ, sound isolation: -29DB, Impedance (at 1KHZ): 18 Ohms, sensitivity (at 1KHZ): 97DB, including 12 silicon eartips, 1/4" adapter, cleaning brush, upgraded 2-pin cable, miniature road case and extra cable