The Amplivox Voice Projector SW227 is an all-purpose portable PA system with no wires, cables or the confusion that comes along with them. Just place the speakers on top of the included tripod stands, install the batteries, clip on the microphone and you're ready to go. The system includes a pair of full-range speakers with tripod mounting stands, a wireless lavalier microphone, a wireless headset microphone, and a beltpack transmitter, along with all of the cables you need. A wireless receiver is built into the speaker box. All you have to do is turn it up to the appropriate volume and make your presentation. All of the components fit into a reinforced nylon carrying case with wheels and a rugged luggage handle.