Profile: Mackenzie Laboratories, Inc. is a provider of digital message repeaters. Our digital message repeaters are the ideal audio and video solutions for information, museum & exhibit applications, & they are available in a variety of channels, connections, bandwidths & memory configurations. Our peripherals are suitable for audio messaging systems, and include controllers, speakers, sensors & push-buttons. Our feedback eliminator eliminates feedback, and records new messages while the previous message is playing. Our brands include RADA™, DADS™, DYNAVOX™, Digimac™, MacFi™, RSVP™ and MACKENZIE™.