Specification subwoofer speaker: 1.LED display 2.Remote control 3.FM radio,built-in Lin-ion 4.USB cable Features: This subwoofer ... good friend for tours & outdoor activities.7)LED display, with remote control,Support FM radio (optional) 8)Dual power supply modes: built ... (Total): 100 Watt · Audio Amplifier: Integrated · Built-in Devices:,LED display.FM radio, built-in Lin-ion, USB/SD/TF card reader ...