subwoofer car amplifier mp3 / fm radio subwoofer Usb,sd card slot FM radio, mp3 player, amplifier DC 12V, AC 220V subwoofer car amplifier ... Item No.: GSG-DY01Technique data: FunctionMp3+FM radio+AmplifierVoltageDC12 / AC 220VPower Output40WPower Disspation40WFM radio frequence range88Hz-108HzSpeaker size4 inchesWeight0.8 kgQTY/carton12pcsSpecificationSupport ...