A great sound system to add to a computer in a classroom to fill the whole classroom with sound. Much more powerful than most computer speakers, powered 30 Watt Stereo Speakers for audiences up to 500 in rooms up to 1,000 sq. ft. Amplifier in one speaker powers both. The main speaker with the control panel has the amp built into it, and connects to the companion speaker simply by hooking the provided speaker wires into the jacks of the main speaker and the other end of the speaker wire hooks to the companion speaker. The S1232 Powered Wall Mount Speakers come complete with wall mounting brackets, mount on wall or ceiling or set on shelf. Simple Twist-on detachable brackets swivel to point in any direction to direct sound to different areas in the room to get the proper sound dispersion. Can connect to computer, projector, multimedia device, or electronic whiteboard, RCA jacks can be used to hook up to a laptop, or you can hook up your iPod with an iPod cable that has a RCA end to it. Volume control, treble and bass controls on the main speaker allow to get the exact sound quality you are looking for. One 8" speaker and one dome tweeter with 2 Band equalizer. Includes 10' cable to connect auxiliary speaker. Stereo RCA input and speaker terminal. AC Power Cord. Molded Plastic enclosure.