Desktop stereo active speaker 3.75 inches metal diaphragm mid-range and bass speaker unit, and 19mm titanium treble speaker unit Versatile with multiple inputs and Bluetooth wireless connection XMOS processor and USB audio connector Precise electronic crossovers and full digital amplification system Universal power supply Multifunctional remote control Power output :R/L(Treble): 12W+12W R/L(Mid-range and bass): 32W+32W Noise level 25db Frequency response : 55Hz-20KHz Input sensitivity : Bluetooth : 600 ±50mV AUX : 600 ±50mV COA / OPT : 400 ±50mV PC : 800 ±50mV Input type : PC/AUX/USB/Optical/Coaxial/Bluetooth Speaker unit : Mid-range & bass: 3.75” (94mm) Treble: 19mm titanium-laminate dome Length (cm): 37.50 Width (cm): 23.5 Height (cm): 35.0 Net Weight (kg): 8.00 Gross Weight (kg): 17.00 Pieces per box: 2