Electronics designed for electroacoustic guitars, including a pickup, preamplifier and built-in tuner. The system includes controls for Volume, Bass, Mid and Treble, controls for the phase function. In addition, it is equipped with a tuner button and an LED display. The system also includes a Fishman Sonicore sensor, Endpin for 6.3 mm jack, plug and play function, or battery status indicator. It is powered by a 9V battery (life 88 hours). Dimensions: 55.8 x 84.2 mm