The Explorer Basic Package (EXP-BP) comes with a portable sound system that is small, lightweight, and easy to transport. It includes the EXP-8000U1 speaker which comes with one built-in 16 channel wireless receiver, your choice of wireless microphone, and a speaker stand. It operates 6-8 hours on a single charge. There is a charging LED bar indicator, and two universal microphone jack inputs on the back. It also has a "Voice Over" music ducking feature. Use it at schools, sporting events, corporate events, places of worship, and more!