Controlled by new faceplate Has many of control buttons to adjust the sounds . Has two pieces of 150W/200W square high fidelity speakers. OUTPUT POWER : 200W/300W/400W. IMPEDANCE : 4 ohm or 8 ohm MAIN FUNCTION:YELP??ELP-S??AIL??I-LO??NGINEERNING(TRAFFIC)??ORN??IREN. NET WEIGHT: 3.1/3.6KGS