BLUETOOTH 4.0 aptX connectivity – Stream high quality sound wirelessly with minimal lossOPTICAL / COAXIAL and AUX inputs - Attach the professional studio speakers to multiple sources at the same time 5.5 INCH MID-RANGE UNIT - Coupled with Digital Sound Processing (DSP) technology to deliver 120 watts RMS quality soundREMOTE CONTROL - Switch input sources and control the volume at your figure tips. 2 YEAR WARRANTY - Guaranteed high quality and reliability with hassle-free parts and labor warranty for two years in USA and Canada.