ARW20Universal 2.0 Modular WirelessSpeaker Conversion SystemConverts any 2.0 speaker system to a wireless speaker system Easily Expandable – The included full 5.1 channel transmitter easilyexpands up to 6 receivers per channel. Add additional channels and roomswithout the cost or hassles of wiring. Interference Free - 2.4GHz technology keeps wireless networks,microwaves and cordless phones from interfering. No clicks, pops orbuzzing. High Power Class D Amplifiers - 60 Watts RMS @ 1% thd from 20Hz-20kHz into 4 ohms +/-3dB. Noise Canceling - Error correction and two-way communication eliminatestatic for noise-free audio. No Signal Loss - Advanced 2-point diversity antenna design eliminatesaudio signal dropout. Uncompressed CD-Quality Audio - Transmits true, full-range audio foroutstanding, high-fidelity sound. Point-to-Multipoint Transmission - Independent receiver modules letyou position speakers virtually anywhere.