MB Quart GMR-3

AM/FM marine digital media receiver (does not play CDs) built-in amp (20 watts x 4 RMS/40 peak x 4 channels) built-in Bluetooth® for music streaming works with Apple® and Android® smartphones marine-rated watertight face large, easy-to-use buttons backlit LCD display inputs: rear USB input, rear aux input outputs: 2-channel preamp outputs fits into a standard tachometer opening large, backlit control buttons waterproof, dustproof, and shockproof required cutout: 3" (diameter) x 3-3/4" (depth) works with MB Quart wired remotes (sold separately)