Moveable multifunction active column speaker perform series, attractive, high stability. Very easy to move and take, 8-inch overweight woofer with professional horn alt, low frequency, softness, good elasticity, high frequency, brightness and fully through, use preventing water PVC, can work long time under the wicked circumstance. Especially adapt to be used in the new country culture information share project, multimedia teaching, conference room, small perfuming and other movement. When in the large collectivity movement and study, offer the high quality audio amplifier to network video, TV and broadcasting station, maximum spread the rich science, education, law, news and culture knowledge. Absolute system, preamplifier stereo line input (L +R), can connect with other sound resource in temporary and realize temporary amplifying sound, such as play the music before conference.