The Liberty Deluxe Package AC Only includes the most popular, portable sound system on the market. The LIB-8000CU1AC speaker with a CD/MP3 Combo Player, and you also get one LIB-8001 companion speaker. Package also comes with the companion speaker, one built-in 16 channel wireless receiver, your choice of wireless mic, bluetooth option, two speaker stands, a connection cable, and a mini cable to plug in external audio source. It is AC powered only, which means it must be plugged into a power source to run. Also, there are two universal microphone jack inputs on the back. Use it for schools, corporate events, sports, places of worship, and more!