Edifier S1000DB Audiophile Active Bookshelf Speakers BLUETOOTH 4.0 aptX connectivity  Stream high quality sound wirelessly with minimal loss OPTICAL / COAXIAL and AUX inputs - attach the professional studio speakers to multiple sources at the same time 5.5 INCH SUBWOOFER - coupled with Digital Sound Processing (DSP) technology to deliver 120 watts RMS quality sound REMOTE 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.