Anchor Audio Megavox 2 System X2 - Portable Speaker Package with 2x Wireless Lapel MicrophonesMegavox 2, AnchorAIR, and two wireless belt pack transmitters with lapel microphones, and one speaker stand Models Included: MEGA2 XU2, QTY. 2 WB LINK + QTY. 2 LMLINK, SS 550. 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.