The Liberty Basic Package includes the most popular, portable sound system on the market. It comes with one built-in 16 channel wireless receiver, a CD/MP3 Combo Player and your choice of wireless mic, a speaker stand, and a mini cable to plug in an external audio source. It has a built-in rechargeable battery that lasts 6-8 hours on a singe charge. There is a charging LED bar indicator, and two universal microphone jack inputs on the back. Use it for schools, corporate events, sports, places of worship, and more!