Active PA Column SystemConsists of column speakers with 8 "subwoofer and 4x 2.75" tweeters200 W Class-D amplifier3-Channel mixerLED effect lightBluetooth 4.2 audio streamingUSB and SD / MMC card MP3 playerLine input: XLR / jack combo socket2 Microphone inputs: 6.3 mm jack balancedFrequency range: 5..