1) Stereo Music sound eliminate, auto continuous play, 8 steps of tone modification 2) Specialized human voice echo circuit, syncretize well with music 3) Microphone channel passes through pre-set equalization, steady phase tech, making the sounds more attractive 4) Latest echo IC and Generation 4 effect circuit, great human voice embelishment 5) Luxurious aluminum alloy panel, dull polished 6)Power: 180W+180W (8ohms)