FEATURES: Selectable RGB Disco Ball Effect Subwoofer Memory Card / Storage Device Microphone and Guitar Inputs Built in Rechargeable Battery Built in Equalizer FM Radio Built-In Trolley Handle & Wheels SPECIFICATIONS: Woofers: 10? / 25.4 cm Tweeter: Horn Output Power: 3500 Watts Frequency Response: 40Hz-20KHz Impedance: 4ê Sensitivity: 93dB