Benwin ECCO-51-DX 5.1 Channel Multimedia Speaker System Benwin ECCO 5.1 DX Hi-Fi SubWoofer Speaker System General Features: Color: Silver with black accents 5.1 Channel Benwin Digital Surround (BDS) Technology Smart Digital Signal Processing (SDSP) Total Output Power: 105W (RMS/ 840W (P.M.P.O) Frequency Response: 15 Hz ~ 20 KHz Built-in Digital Amplifier User friendly wireless remote control