Luxury color pointer screen display The low leak magnetic ring type voltage Low distortion dynamic amplifier design The newest professional karaoke design Auto output protect circuit FM radio runer Total output power: 30W*2 Frequency responses:20Hz-20KHz Gross harmonic distortion: ≤0.5% S/N Rate: ≥50db REMOTE CONTROL/FM RADIO/REMOTE CONTROL+FMRADIO are available