Just grab it and go! With the MegaVox Pro you're ready for any situation...it's lightweight, loud and easy to carry. Thousands report it's the most reliable PA system on the market. Emergency responders like its signal alert siren, wired microphone and convenient shoulder strap. Coaches, band directors and auctioneers appreciate the flexibility of the AC/DC operation and the range of the wireless microphones. From near or far, with a wireless microphone you'll always be heard loud and clear. The MegaVox Pro is your only choice for a portable, public address system.