This powerful 100 watt unit is built into a rugged case with a handle, and is perfect for voice amplification on the go or in any venue. Simply plug the unit in, and grab the included handheld wireless microphone for audio coverage of up to 10,000 people! An optional tripod is also available. The CD or cassette multimedia function allows music & multimedia sound effects during one's presentation, plus the user can record onto cassette during use! Standard base/treble controls with mic volume allow user to customize to room size or outdoor use. It comes with line out for extension speaker capability.