... art, combine various of elements to create a high-fidelity stylish 2.1CH music system: Audio Processing ... more expansive sound spectrumBreathtaking SoundSexy and steady, two high-quality 1.5-inch mid-tweeter and one 4-inch subwoofer, ... supply:Adapter DC18V-2ASound featureHIFI speaker units, clear acoustic quality, low distortionProduct AdvantageBluetooth2.1CH, A2DPTone QualityAcoustic fidelity , power ...