Powered 30 Watt Stereo Speakers for audiences up to 500 in rooms up to 1,000 sq. ft. Mount on wall or ceiling with built-in wall mounts or set on shelf. Simple Twist-on detachable brackets swivel to point in any direction to direct sound to different areas in the room. Amplifier in one speaker powers both. Can connect to computer, projector, multimedia device, or electronic whiteboard. One 8" speaker and one dome tweeter with 2 Band equalizer for Treble and Bass adjustments.Volume Control. Includes 10' cable to connect auxiliary speaker. Stereo RCA input and speaker terminal. AC Power Cord. Molded Plastic enclosure. 8"W x 7"D x 10"H Overall Dimensions.