Edifier R501BT 5.1 Bluetooth Multimedia Speaker System - Black

 Power output: RMS 11W x 5 + 38W
 THD + N (testing level): 10%
 Signal to noise ratio: ≥ 85dBA
 Frequency response: Satellites: 170Hz - 20KHz (±6dB), Center: 150Hz 0 20Hz (±6dB), Subwoofer: 38Hz - 95Hz (±3dB)
 Input sensitivity: 800 ± 50mV
 Input type: 5.1, Bluetooth, PC, Aux, SD Card, USB
 Speaker driver: Mid-range & treble unit: 3” (78mm), Bass unit: 8inch (210mm)