This portable PA system is well built and good value for money. It has a built in MP3 player and the inboard mixer is all you need to power up a small gathering for 20 to 30 people. The only thing that Behringer left out that would make this unit perfect was a 12 volt power input. That would have been icing on the cake. The punchy speaker has a massive magnet which adds to the weight and the amplifier has more than enough power to fill a small area with clear speech and background music.