The Liberty DUAL Deluxe Package includes the most popular, portable sound system on the market. The LIB-8000CU2 speaker with a CD/MP3 Combo Player, and you also get one LIB-8001 companion speaker. Package comes with the companion speaker, two built-in 16 channel wireless receivers, your choices of two wireless mics, optional bluetooth, two speaker stands, a connection cable, and a mini cable to plug in 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!