The Alesis PA System in a Box Bundle includes a 4-channel powered mixer with a powerful 280-watt (peak power) amplifier, two 10-inch 2-way, high-output passive speakers and two 20-foot speaker cables, two speaker stands and a microphone with cable - everything you need for great sound reinforcement, all in one box. It’s perfect for anyone who needs an affordable but complete mobile PA system for a small venue, rehearsal space, presentation, ceremony, house of worship or sporting event. The included PA80 4-channel powered mixer features a balanced microphone XLR input, an unbalanced 1/4" line input, 2-band EQ, and a FX level control on each of the 4 channels. There is also a 3-band master EQ, as well as a master level, time, and a repeat control for the built-in digital delay effect. The powered mixer has 280 dynamic watts of power on hand (80 watts continuous), and provides the system’s speakers with abundant power for exciting room-filling sound. There is also an RCA input for playing back songs from your mobile device, as well as an RCA output for connecting to a portable recorder. If you need additional inputs, there’s an additional 1/4" line input and 1/4" line output for connecting other external devices. The PA80 Powered mixer also features USB and SC Card inputs for playing MP3s - perfect for intermission music at an event or for learning music from a recording as a group. The onboard controls can be used to play, stop, or change tracks, as well as change the EQ of the MP3 audio to cater to pop, rock, jazz or classical.