Features 119 dB of clear sound - 20W AC/DC mode - 150'+ wireless range Alternate wired and wireless companion mode Built-in rechargeable battery operates 6 - 8 hours on a single charge High efficiency re-entrant horn driver+ - ADA Compliant Your Choice of (2) Microphones: Handheld, Lapel, Headband, Collar, Ear Worn Description Product Description Cables can snare. Upgrade to the AIR! The Anchor Audio MegaVox Pro is considered the industry standard portable PA system on the market. Now with complete wireless capability, take your MegaVox and MegaVox AIR anywhere for double the sound coverage without the hassle of running cables between units. Use the MegaVox outdoors for speaking engagements, announcements, band practice, track meets, emergency preparedness, auctions, shooting ranges, military trainings, and more!