The "SPC (Strat Presence Control)" from "EMG," a globally recognized brand for guitar pickups. This Stratocaster presence control boosts the midrange over a wide range while simultaneously cutting the treble, enabling the creation of a fat and loud tone that cannot be achieved with single-coil pickups. (Specifications) ■ SPC Presence Control ■ For Stratocaster ■ Boosts midrange and cuts treble for a FAT sound. ■ Output Noise: -117dBV ■ Output Impedance: 2kΩ ■ Current 9v: 270 ■ Battery Life: 925 ■ Millimeter specifications