Active sound set. Consists of a powered subwoofer, two passive speakers, racks and cables. The subwoofer has a telescopic handle and wheels for easier transport. 12 "active subwoofer includes a built-in 3-channel amplifier MAX: 800W + 2x 300W Frequency range: 20-180 Hz, output SPEAKON, built-in MP3 / WMA Player USB / SD. Dimensions are: 400x440x600mm and weight 23 kg. 2 x passive loudspeaker offer 8" woofer and 1" tweeter Max power 300W, frequency range 50-20000 Hz, 8 ohm, size: 300 x 410 x 200 mm, weight: 6,2 kg. Weight of stands is 4,5 kg.