- 1000 Watt MAX 15 PROFESSIONAL PA SPEAKER SYSTEM - SENSITIVITY : 102dB(-/+3dB) - FREQ.RANGE : 40Hz - 20KHz - BUILT IN BLUETOOTH, USB, SD CARD, MP3 PLAYER - DSP FUNCTION - MUSIC VOLUME CONTROL - MICROPHONE/ LINE INPUT - POWER SOURCE : AC 220V 50/60Hz