• Power output: R/L: RMS 12Wx2 SW24: 48W • Signal to noise rate: ? 85dBA • Frequency response: R/L:210Hz-20KHz SW:20Hz-120Hz • Input sensitivity: R/L: 400mV±50mV SW: 70mV±20mV • Input type: AUX/USB/SD card/Bluetooth • Bass unit: 6 1/2 inch(178mm) • Mid-range unit: 3 inch(78mm) • Treble unit: Φ 10mm • adjustment :Side control panel,remote control