Audience Size: Up to 2,500. Room Size: Up to 25,000 sq. ft. Take the Voice Carrier outdoors, to an auditorium, or set it up in a conference room. 50 watt Multimedia Stereo Amplifier with 3 mic inputs, two Dual Module Companion Speakers with 40-ft. cables, 3 tripods, bracket for flexible gooseneck with mic holder. Comes with professional cardioid dynamic handheld mic with 15-ft. cord. Includes rugged nylon reinforced carrying case on wheels with extendible luggage handle. Power with 10 D-cell alkaline batteries (not included) for up to 200 hours; International AC Adapter/recharger and Rechargeable Nicad Battery Pack also available. 30"W x 12"D x 17"H overall.