Here we have the 2 speaker big internal amplifier all bluetooth system that fits all years 570\800\900xp 2 seaters and fits under all roofs. This little unit packs a punch and will out perform most some of the bigger companies 4/6 speaker system. It has power to spare where adding the rear two speakers later would let it double it output! Comes standard with internal bluetooth with options such as bluetooth head unit and leds speakers