The MegaVox is a free standing unit with huge power and clarity for crowds of 1000+. This highly portable design comes with a handle for easy transportation and emits a whopping 119 dB of clear sound levels. Battery operation is good for up to 8 hours and even extended events. The MegaVox accepts up to 4 wireless microphones, wired audio sources, Bluetooth and can broadcast sound to additional Anchor AIR components for even greater coverage.