Total RMS:20W Driver: 2” ×4+4’’×1 Main Controls: Remote Control , USB/TF Card,Bluetooth,FM Top can put the Phone&Table PC Frequency Response: 80Hz – 20KHz S/N Ratio: ≥85dB Sensibility: 680mV 1000Hz Dimensions (HxLxD): 60x40x55mm Power Input:AC 220V Audio Input:3.5MM Plug