The perfect companion for LCD projectors this portable speaker/amplifier combination is ideal for audiences of up to 1000 in rooms up to 10000 sq. ft. Built-in 50W amplifier with 6 x 8 Jensen design speaker delivers crisp clear sound. Dual-channel internal wireless receiver lets presenters roam up to 300 ft. Rugged highly-portable design keeps everything contained in a 4-lb. carrying case with a handle and shoulder strap. Amp has three mic inputs (condenser dynamic and wireless) auxiliary input jacks with separate tone/volume controls for CD players and multimedia projectors as well as line out jacks for additional speakers or recording. Mic Input Types: Condenser Dynamic Wireless Number of Mic Inputs: 3 Speaker Type: 6" x 8" Jensen Speaker Number of Speakers: 1.Unit of Measure : Each