Williams AV announces the launch of its next generation Digi-Wave Series of digital intercom and tour guide communication systems, the Digi-Wave 400. The Digi-Wave 400 Series takes the existing 300 Series and adds a new user interface, charging dock and pairing option. The Digi-Wave 400 Series is the ultimate lightweight, portable, two-way communication system designed to easily connect employees, clients and team members. Using its frequency-hopping algorithm, it avoids interference, while keeping a very secure method of communication. The standard Digi-Wave 400 System includes at least one receiver (DLT 400), and various combinations of transceivers and receivers depending on application. Typical applications include guided tours, language interpretation, intercom and hearing assistance.